Low Fps Whenever A Grineer Fires A Gun

[elele]

I have this weird FPS problem. I usually get 40+ fps but whenever a Grineer fires a gun, the fps drops below 20. I have no fps problem on the Corpus tileset if it's occupied by the Corpus (40+ fps even in the heat of combat), but today when I did a Grineer invasion mission on the Corpus tileset, I had the same fps drop like in Grineer tilesets. 

 

Also I've noticed there is sound stuttering when a Grineer fires a gun. 

 

Specs: i7 920, 6GB ram, R9 290. 

[Athros]

That's definitely weird...

 

1. Try to update your soundcard driver.

2. Try to check for files' inconsistency and defrag your files through the launcher.

3. If you overclock your CPU, set it back to its normal speed.

4. Find any sound-related program that runs in your background while playing WF and check for excessive CPU/memory usage.