So long as you aren’t dropping a lot of frames or lagging heavily, it doesn’t really matter because the game time will be the same regardless of the frame rate. Here is the link to the one I use, but I wouldn’t recommend it since it has a lot of issues. https://www.gameshaha.net/tag/emulator/

Also, not many people respond on the SRC site. If you have future questions, You’ll get more answers if you ask in the discord https://discord.gg/MjubmFJ

I use VisualBoyAdvance, works fine for me, usually 99-100%