Hi guys, while upgrading project to ExtJs 4.1.1a version, I discovered that grids scrolling and general performance is pretty low. In my case it was reproduced only on my Windows 7 PC on Firefox 18.0.2. Problem is connected to enabled "hardware acceleration". In 18.0.2 version "hardware acceleration" is enabled by default. When I turn it off, performance increased a lot. Issue with firefox was solved in firefox 19 beta, grid performance is much better.
But after check on other PCs, I found the same issue on OS X 10.8.2 Build 12C3006, Safari Version 6.0.2 (8536.26.17).
Checked ExtJS 4.2.x beta, grid performance is on the same level.
When you check the same grids in 3.x version, performance is fine.
Before writing this post I've made pretty big research, as I can not upgrade to 4.x version until grid scrolling is fixed. Maybe someone knows any improvements, that sencha team can advice? or should we expect better performance in next versions?
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