annoying slowdowns ?

[b_m_l]

yes the same here, games are runnung fine (with correct settings WAY too fast, about 300 % of usual gamespeed, so i use framelimiter to have normal speed, therefore i know my machine must be good enough) and how slow is slow? lets say sonic runs with 30fps most of the time and every 5-10 seconds drops to 5, stuttering and then gets back fast, also happens with donkey kong and other games (super mario galaxy for example but i think this game is not well emulated, i read a lot about it)