Emulator

What's the problem?
Part vidéo of games are really slows

Dolphin version with the problem (as it appears in the title bar, Ex.: "R
4779" or "R 6403M"): All I know r6***

(optional) Dolphin version that does not have the problem:

Operating system and version:
32-bit or 64-bit: 64bits and 32bits Leopard 10.5.8 & SnowLeopard 10.6.5

Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"):
not time for GamesID sorry: MarioKart, Zeldas all in EUR

Build command-line (not on Windows):
scons --config=auto -j 4 wxconfig=/usr/local/bin/wx-config

Was the ISO a plain dump from disc, compressed and/or scrubbed?
compressed iso from Dolphin PC

Please provide any additional information below.
Videos are played at 50% of the true speed
Best Regards