did a spreaded vlc videoplayer with interface.
performance behaviour is quite strange:
CPU i5-3320M, 4GB RAM, SSD: 60fps (30% CPU usage)
CPU Q6600, 4GB RAM, SSD: 2fps (25% CPU usage!!)
with identical videos.
on both machines:
VVVV 45beta33.1 x86
same problem when I play the files from HDD.
have also checked SSD and HDD performance, looks normal.