Emulator

Game Name?

Metroid Prime

Game ID? (right click the game in the game list, properties, info tab)

GM8E01

MD5 Hash? (right click the game in the game list, properties, info tab, MD5 Hash: Compute)

fdfc41b8414dd7d24834c800f567c0f8

What's the problem? Describe what went wrong.

metroid have little lag and big lag and slowdown of fps

What steps will reproduce the problem?

open dolphin
play metroid
the game lag slowdown of fps...

Which versions of Dolphin did you test on? Does using an older version of Dolphin solve your issue? If yes, which versions of Dolphin used to work?

5.0-rc35

What are your PC specifications? (CPU, GPU, Operating System, more)
Windows 7 x64
24gb RAM
Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (8 CPUs), ~3.6GHz
MATRIX-GTX980-P-4GD5 (overclocked)

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)

yes