DesMuMe Emulator FPS problem

[Something]

Now i've attempted to use google to fix this, but this is apparently unusual

 

I've already optimized DesMuMe for maximum FPS, and under most circumstances it runs a smooth 55-60. However, very recently for no reason it's dropped to 20-25, making my games pretty much unplayable.  Here's a screenie of me in Pokemon White with FPS counter on

One thing I noticed is that the second number (30) is...well, 30. IIRC it counts the maximum fps in a game. Meaning that, at maximum, my game will be running at half fps. I don't recall changing any settings or anything that may affect this so I figure it's some button I accidentally pushed or something. Hopefully someone more knowledgeable can assist. So...help?

[The DarkSlayer]

Switch to No$GBA.

[Kamen Rider Kuuga]

Buy an actual DS and get a flash cart.

[LordJerle]

Quit playing Pokemon games.  Problem solved.

[Something]

Okay, this thread can die now, issue resolved. Apparently battery settings somehow got changed from "entertainment mode" to "quiet office." Somehow DesMuMe now runs slightly faster than it did before.