diff -r c03decd8ded0 static/js/noc/core/ModelApplication.js
--- a/static/js/noc/core/ModelApplication.js	Tue Jun 17 16:50:27 2014 +0400
+++ b/static/js/noc/core/ModelApplication.js	Tue Jun 17 16:53:01 2014 +0400
@@ -39,11 +39,16 @@
         // Variables
         me.currentQuery = {};
         // Create store
+        var bs = Math.ceil(screen.height / 24);
         me.store = Ext.create("NOC.core.ModelStore", {
             model: me.model,
             customFields: me.noc.cust_model_fields || [],
             autoLoad: false,
-            pageSize: 1  // Increased by AutoSize plugin
+            pageSize: bs,
+            leadingBufferZone: bs,
+            numFromEdge: Math.ceil(bs / 2),
+            trailingBufferZone: bs,
+            buffered: true
         });
         me.idField = me.store.idProperty;
         me.ITEM_GRID = me.registerItem(me.createGrid());
@@ -214,7 +219,6 @@
                 handler: me.onFavItem
             },
             {
-                //iconCls: "icon_page_edit",
                 glyph: NOC.glyph.edit,
                 color: NOC.colors.edit,
                 tooltip: "Edit",
@@ -284,14 +288,14 @@
             {
                 xtype: "toolbar",
                 items: me.applyPermissions(gridToolbar)
-            },
+            }/*,
             {
                 xtype: "pagingtoolbar",
                 store: me.store,
                 dock: "bottom",
                 displayInfo: true,
                 plugins: new Ext.ux.ProgressBarPager()
-            }
+            }*/
         ];
         //
         if(me.treeFilter) {
@@ -330,7 +334,14 @@
             autoScroll: true,
             stateful: true,
             stateId: me.appName + "-grid",
-            plugins: [Ext.create("Ext.ux.grid.AutoSize")],
+            //plugins: [Ext.create("Ext.ux.grid.AutoSize")],
+            plugins: [
+                {
+                    ptype: "bufferedrenderer",
+                    //trailingBufferZone: 50,
+                    //leadingBufferZone: 50
+                }
+            ],
             selModel: selModel,
             dockedItems: gridToolbars,
             rbar: grid_rbar,
@@ -743,6 +754,7 @@
         var me = this;
         if(me.currentQuery)
             me.store.setFilterParams(me.currentQuery);
+        me.store.data.clear();
         me.store.load();
     },
     // Search
diff -r c03decd8ded0 static/js/noc/core/ModelStore.js
--- a/static/js/noc/core/ModelStore.js	Tue Jun 17 16:50:27 2014 +0400
+++ b/static/js/noc/core/ModelStore.js	Tue Jun 17 16:53:01 2014 +0400
@@ -95,7 +95,7 @@
         me.currentPage = 1;
     },

-    load: function(config) {
+    getOpConfig: function(config) {
         var me = this;
         config = Ext.Object.merge({
                 params: Ext.Object.merge({}, me.filterParams)
@@ -108,9 +108,14 @@
                     NOC.error("Failed to fetch data!");
             }
         }, config);
-        // Continue loading
-        me.callParent([config]);
+        return config;
     },
+
+    prefetch: function(config) {
+        var me = this;
+        me.callParent([me.getOpConfig(config)]);
+    },
+
     // override sync()
     sync: function(config) {
         var me = this,