1. first task manager i look at cpu ussage if low 1-2% then ok if not write. (maybe u have runing some proces in backgroud like for ex: microsoft update like svhost can take 99% ussage cpu-win xp or something like this)
2. close all aplication+working in bacground too disable all up and downloads

3. set wow high priority+in game: all details low+disable ver sync+set lag tolerance max 400ms enable+disable frme+in hb turn off frame lock
it should be helps
did u try dunegon 5 man -was lag??? 10 man??? 25 man?? 40? man? where fps start drops???
can you write (when task manager is up) ussage cpu and memory with hb and without hb in the same raid and the same fight? (not count if 1000 ads spawned and all 40 man doing aoe

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write u hardware setup+OS ver
Hi MrX! Not sure if your response was for me, but I will reply with my issues.

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Yes, it lags every time I use it, in every circumstance, as soon as I press the Start button. I have seen a bit of lag (minimal) from other routines, but NADA like this. It is basically a matter of shoot, stall, shoot, stop, shoot, skip, shoot, lag, shoot, stop, shoot ... you get picture.
Almost every unnecessary program (background and other) is disabled as I use this system ONLY for gaming. Under services.msc, only the basics really are running. I have even gone in mid-game and ended processes such as TSVN. Nothing.
All my graphics have been turned to low for months now, actually, in order to be able to run THIS routine.
WoW was set to 'Above Normal', and just today I changed it to 'High'. Have not really noticed a difference.
Do not understand the part about Vertical-Sync or the lag tolerance part.
Ahhh and yes, the Frame Lock thing ... with it off, the lag is SLIGHTLY better, but the DPS meter numbers drop significantly. With it on, even with the lag, numbers are good.
I dream of no lag, allowing my pretty little toon to top the charts

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