Emulator

What steps will reproduce the problem?

1. when i load the attached memorycard save in paper mario thousand year door (GC)
   the speed is normal at first, but after a few seconds it goes down to 50/60%

What is the expected output? What do you see instead?
expected that the speed remains 100%

Dolphin version with the problem? Other Dolphin version without the
problem?
r6167 x64
32-bit or 64-bit and any other build parameters?
64-bit, dx11, dx9, ogl, hle sound

OS version and versions of tools/libraries used?
windows 7