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[4.x] Serious performance issues under IE 8
Originally posted here earlier today : http://www.sencha.com/forum/showthre...ues-under-IE-8
Update, using EXTJS Example "EXTJS Theme" as the test case.
I’m seeing serious performance issues under IE 8 using 4.0.0
Using Chrome, EXTJS is lightning fast! (much faster than in EXTJS 3.3)
Using FF 3.6, performance is not far off Chrome but I’m seeing a little performance degradation when layouts get more complex.
Using IE 8, large layouts/apps are basically unusable.
I've tried other Machines (VM's and Physical) and I'm still seeing the same performance problems under IE 8.
See attached video...
Part 1: EXTJS Theme running under 3.3 (8 seconds load time)
Part 2: EXTJS Theme running under 4.0.0 (33 seconds load time)
Hope this helps.