I have been having an issue with Twitch.tv and Justin.tv (same flash player) where videos constantly cause Chrome to freeze for 5-10 seconds.
I have confirmed that Kaspersky is the culprit, as disabling protection remedies this issue entirely. I tried adding the flash libraries to my exclusions list (not as a permanent solution, just for testing) but that did not fix anything. The only fix is just to disable protection on demand.
Windows 7 Professional x64 SP1 (all latest updates/hotfixes)
Google Chrome browser (all latest updates)
Adobe Flash player (Flash - Version: 11,1,102,55 Shockwave Flash 11.1 r102) toggled GPU acceleration on/off, didn't do anything
AMD Catalyst 12.1 GPU drivers(latest)
ASUS Maximus IV Extreme-Z
Intel Core-i7 2600k
16GB G.Skill DDR3-1866
RAID-0 4x250GB WD Caviar Blue
AMD Radeon HD 5870 2GB
I'm using the latest updated version of Kaspersky PURE. Let me know if there is any other info I can provide to help understand the problem.