Brush delay


Hi, I’ve just bought new computer and I have an unexpected problem:
in drawing programs (PS CS6, Painter 12, MS paint), I am experiencing brush delay(my 11 year old Toshiba laptop hasn’t got such lag:

I’ve tried reinstalling tablet drivers (intuos4 m) tweaking PS performance tab. All of these programs use 50 % max of processor performance, the problem is there regardless resolution of page or brush size.

Computer specs:
i7 3770K not overclocked
ASUS HD 7950
Windows 7 Home Premium 64 bit

Is it possible that GPU has something to do with this (but drivers are up to date)? I am really lost :9 maybe someone has encountered this problem?


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