Slow and "strange" emulation

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(04-30-2015, 10:41 PM)BananaBoy Wrote: Hi Today I had a problem with dolphin while emulating Mario Kart Double Dash and Mario Kart Wii: in two player mode the emulation was slow (max 40fps) while playng in single player both the games run well :/
What could be the problem?
Theese are my laptop spec:
Windows 8.1 x64
Intel Core I7-3630QM 2.40GHz
NVIDIA GEFORCE GT 635M
12Gb RAM

I'm using dolphin 4.0

Try using the latest development build which is faster.