Low Video Settings, Lowest Resolution Quality For Slow Computer

[AnyOldName3]

Emulation is typically more than ten times as expensive as running code natively. The computer has to do extra work to translate the instructions into something that it can run, and because it has to do so very quickly, it doesn't have time to work out the fastest way of doing it, instead effectively going for the first set of instructions it can think of that will definitely work.