VLC: 2fps on PC, 60fps on laptop ?!

vvvv beta question
1

hi guys,

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:

VLC 2.5.1
VVVV 45beta33.1 x86
Win7 x64

same problem when I play the files from HDD.
have also checked SSD and HDD performance, looks normal.

any clues?

2

is playback in normal vlc for windows same?

3

yes, can smoothly watch the same videos with 4 vlcs open @ ~40% cpu

4

try render tty might that give u some clue…
also if u use dx9 vlc that might be issue, try dx11 vlc