Strange Gpu behavior

I just finished changing the "m wave type" on a custom theme file and exited vitashell when i noticed the livearea had a sudden, unbearable lag. I checked the psvshell menu and the gpu was undercklocking to 41 mhz for some reason. I had to put it back at 111 manually and if I don't save those changes it reverts to 41 mhz everytime i exit an app. Is this normal?