WoT performance (or computer performance?)

MrConway: Do a clean installation of WoT and also remove the game cache. Also check if your CPU is overclocking in any way and disable it, the engine does not like overclocked AMD CPU's.   If this does not help try defragmenting hard drive and then as a last resort a new Windows. I know an OS reinstallation hurts, but as we all know, it does Windows a world of good, mine is also due :/