Hi

I have a several grids on my page, each grid have about 50 rows, as result size of my page with layout about 2 mb

My GridPanel
<ext:GridPanel ID="extGrid" ClientIDMode="Predictable" runat="server" Header="false" HideBorders="true"
	AutoHeight="true" AutoWidth="true" 
	EnableDragDrop="false" EnableColumnMove="False" 
	ViewStateMode="Disabled" Cls="grid">
	<Store>
		<ext:Store runat="server" SerializationMode="Complex" ClientIDMode="Predictable" 
			RemoteGroup="false" RemotePaging="false" RemoteSort="false" GroupOnSort="false" IgnoreExtraFields="true">
			<Listeners>
				<Load Fn="dataPrepare" Delay="0" />
			</Listeners>
		</ext:Store>
	</Store>
	<ColumnModel ClientIDMode="Predictable" DefaultSortable="false" DefaultWidth="70" >
		<Columns>
			<ext:Column Width="200" Hideable="False" MenuDisabled="True">
				<CustomConfig>
					<ext:ConfigItem Name="TotalText" Mode="Value" Value="Total" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-str" />
				</CustomConfig>
			</ext:Column>
			<ext:NumberColumn DataIndex="sls" Header="Total Sales" Align="Right" Format="$0,000"
				Width="110" Tooltip="Total Sales ($ in Thousands)" Hideable="False" MenuDisabled="True">
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:C0}" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-dgt" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="prt_sp" Header="% Promo" Align="Right"
				Format="0.00%" Width="80" Tooltip="Promo Sales (%)" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0.00\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="cp_amt" Header="vs Previous (%)" Align="Right"
				Format="0%" Tooltip="Current ($) vs. Previous Year (%)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="s_bdg" Header="vs. Budget" Align="Right" 
				Format="0,000" Tooltip="Index vs. Budget" GroupName="group" />
			<ext:NumberColumn DataIndex="sls_qty" Header="Movement  (Units)" Align="Right" 
				Format="0,000" Tooltip="Movement (Units)" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0,0}" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-dgt" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="cp_unt" Header="vs Previous (%)" Format="0%"
				Align="Right" Tooltip="Sales (Units) vs. Year Ago (%)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="g_mrg" Header="Gross Margin" Align="Right"
				Format="$0,000" Tooltip="Gross Margin ($ in Thousands)" Hideable="False" 
				MenuDisabled="True" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:C0}" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-dgt" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="prt_gm" Header="Margin Rate (%)" Align="Right"
				Format="0.00%" Tooltip="Margin Rate (%)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0.00\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="m_bdg" Header="vs. Budget" Align="Right" 
				Format="0,000" Tooltip="Gross Margin vs. Budget" />
			<ext:NumberColumn DataIndex="ls" Header="Lost OOS Sales" Align="Right"
				Format="$0,000" Tooltip="Lost OOS Sales ($ in Thousands)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:C0}" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-dgt" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="prt_ls" Header="OOS Sales (%)" Align="Right"
				Format="0.00%" Tooltip="OOS Sales (%)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0.00\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="prt_oos" Header="OOS Promo (%)" Align="Right"
				Format="0.00%" Tooltip="OOS Promo (%)" Width="90" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0.00\%}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="dc_trn" Header="Avg DC Turns" Align="Right"
				Format="0,000" Tooltip="Average DC Turns" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0,0}" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="s_trn" Header="Est Avg Store Turns" Align="Right"
				Format="0,000" Width="120" Tooltip="Estimated Average Store Turns" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalFormat" Mode="Value" Value="{0:0,0}" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-dgt" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="GMROII" Header="GMROII" Align="Right"
				Tooltip="GMROII (%)" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalText" Mode="Value" Value="Future" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-inct" />
					<ext:ConfigItem Name="IsInactive" Value="true" />
					<ext:ConfigItem Name="InactiveCellText" Mode="Value" Value="Future" />
					<ext:ConfigItem Name="InactiveCellCls" Mode="Value" Value="x-grid3-cell-inct" />
					<ext:ConfigItem Name="ExportProhibited" Mode="Value" Value="true" />
				</CustomConfig>
			</ext:NumberColumn>
			<ext:NumberColumn DataIndex="s_scr" Header="SC Sync Score"
				Align="Right" Tooltip="Supply Chain Sync Score" >
				<CustomConfig>
					<ext:ConfigItem Name="TotalText" Mode="Value" Value="Future" />
					<ext:ConfigItem Name="TotalCls" Mode="Value" Value="x-tcell-inct" />
					<ext:ConfigItem Name="IsInactive" Value="true" />
					<ext:ConfigItem Name="InactiveCellText" Mode="Value" Value="Future" />
					<ext:ConfigItem Name="InactiveCellCls" Mode="Value" Value="x-grid3-cell-inct" />
					<ext:ConfigItem Name="ExportProhibited" Mode="Value" Value="true" />
				</CustomConfig>
			</ext:NumberColumn>
		</Columns>
	</ColumnModel>
	<SelectionModel>
		<ext:RowSelectionModel ClientIDMode="Predictable" runat="server" />
	</SelectionModel>
	<View>
		<ext:GridView ForceFit="true" AutoFill="true" ClientIDMode="Predictable" >
			<HeaderGroupRows>
				<ext:HeaderGroupRow>
					<Columns>
						<ext:HeaderGroupColumn ColSpan="1" Header="" />
						<ext:HeaderGroupColumn Align="Center" ColSpan="4" Header="Sales ($ in Thousands)" />
						<ext:HeaderGroupColumn Align="Center" ColSpan="2" Header="Unit Sales" />
						<ext:HeaderGroupColumn Align="Center" ColSpan="3" Header="Gross Margin ($ in Thousands)" />
						<ext:HeaderGroupColumn Align="Center" ColSpan="3" Header="Out of Stocks (OOS) ($ in Thousands)" />
						<ext:HeaderGroupColumn Align="Center" ColSpan="4" Header="Inventory" />
					</Columns>
				</ext:HeaderGroupRow>
			</HeaderGroupRows>
		</ext:GridView>
	</View>
</ext:GridPanel>
Fragment of JSON generated for one of my grid
Ext.net.GridPanel({
  store:this.grdDvnByCmt_ctl03=new Ext.ux.data.PagingStore({
    proxyId:"grdDvnByCmt_ctl03",
    autoLoad:true,
    reader:new Ext.data.JsonReader({ 
      fields:[
        {allowBlank:false,name:"division"},
        {allowBlank:false,name:"g_mrg"},
        {allowBlank:false,name:"ls"},
        {allowBlank:false,name:"sls"},
        {allowBlank:false,name:"sls_qty"},
        {allowBlank:false,name:"prt_ls"},
        {allowBlank:false,name:"prt_sp"},
        {allowBlank:false,name:"prt_gm"},
        {allowBlank:false,name:"prt_oos"},
        {allowBlank:false,name:"s_trn"},
        {allowBlank:false,name:"dc_trn"},
        {allowBlank:false,name:"m_bdg"},
        {allowBlank:false,name:"s_bdg"},
        {allowBlank:false,name:"cp_amt"},
        {allowBlank:false,name:"cp_unt"},
        {allowBlank:false,name:"GMROII"},
        {allowBlank:false,name:"s_scr"}
	  ]
    }),
    directEventConfig:{},
    proxy:new Ext.data.PagingMemoryProxy([
		{
		  "RowVersion":"Current",
		  "Row":{
			"RowError":"",
			"RowState":"Added",
			"Table":[
			  {"division":"011 - Atlanta","g_mrg":5974.18,"ls":1072.39,"sls":27719.75,"sls_qty":10658.00,"prt_ls":3.72,"prt_sp":45.17,"prt_gm":21.55,"prt_oos":28.17,"s_trn":11.50,"dc_trn":28.03,"m_bdg":124.99,"s_bdg":114.43,"cp_amt":105.60,"cp_unt":103.08,"GMROII":null,"s_scr":null},
			  /* here all other my tabe rows */
			  {"division":"708 - Food 4 Less - Midwest","g_mrg":400.13,"ls":119.06,"sls":2469.40,"sls_qty":1122.00,"prt_ls":4.60,"prt_sp":44.22,"prt_gm":16.20,"prt_oos":25.04,"s_trn":17.78,"dc_trn":28.03,"m_bdg":108.75,"s_bdg":113.18,"cp_amt":102.47,"cp_unt":108.06,"GMROII":null,"s_scr":null}
			],
			// this is my FIRST grid row
			"ItemArray":[
			  "011 - Atlanta",5974.18,1072.39,27719.75,10658.00,3.72,45.17,21.55,28.17,11.50,28.03,124.99,114.43,105.60,103.08,null,null
			],"HasErrors":false},
		  "IsNew":false,
		  "IsEdit":false
		},
		{
		  "RowVersion":"Current",
		  "Row":{
			"RowError":"",
			"RowState":"Added",
			"Table":[
			  {"division":"011 - Atlanta","g_mrg":5974.18,"ls":1072.39,"sls":27719.75,"sls_qty":10658.00,"prt_ls":3.72,"prt_sp":45.17,"prt_gm":21.55,"prt_oos":28.17,"s_trn":11.50,"dc_trn":28.03,"m_bdg":124.99,"s_bdg":114.43,"cp_amt":105.60,"cp_unt":103.08,"GMROII":null,"s_scr":null},
			  
			  /* here all other my tabe rows, SAME COPY AS ABOVE */
			  
			  {"division":"708 - Food 4 Less - Midwest","g_mrg":400.13,"ls":119.06,"sls":2469.40,"sls_qty":1122.00,"prt_ls":4.60,"prt_sp":44.22,"prt_gm":16.20,"prt_oos":25.04,"s_trn":17.78,"dc_trn":28.03,"m_bdg":108.75,"s_bdg":113.18,"cp_amt":102.47,"cp_unt":108.06,"GMROII":null,"s_scr":null}
			],
			// this is my SECOND grid row
			"ItemArray":[
			  "014 - Cincinnati",4387.41,707.16,20546.45,7840.88,3.33,42.79,21.35,27.28,12.42,28.03,118.76,113.92,105.50,98.71,null,null
			],"HasErrors":false},
		  "IsNew":false,
		  "IsEdit":false
		},
		// ...
		// and next other rows for my grid
	])
  })
})
Here is not clear why and by who generated table json for each row and how this "feature" can be disabled.

I would appreciate any help.

Thanks.