My Dolphin emulator became slow

[BlueSpinBro]

The day before I was playing Smash Bros. Brawl when my dad told me to do a disk cleanup of my system. I did a disk cleanup and now my emulator is running seriously slowly for all my games. I used to be able to play Melee at 50-60 fps but now it's at 10 fps. Were there any important files that I deleted and if so is there any way to get them back? This is really annoying me because I was practising Ice Climbers to surprise my friend in Brawl.

[Helios]

Are you actually on a 32 bit install of Windows? If so, we cannot help you as we dropped support for 32 bit years ago and we only support the latest stable release onwards.

You will need to reinstall your OS as 64 bit and run the latest stable release (or development release) to get any help from us.