Unless you use anything that does JIT compilation (e.g. JVM), e.g. JetBrains IDEs are really slow onder Rosetta. Another pain point is code that relies heavily

Unless you use anything that does JIT compilation (e.g. JVM), e.g. JetBrains IDEs are really slow onder Rosetta. Another pain point is code that relies heavily on SIMD. AVX/AVX2/AVX-512 instructions are not translated, so in those cases you'll be using slower kernels. My machine learned models are ~10 times slower with libtorch under Rosetta. Though they are competitive when compiling libtorch natively. (Source: I have used an M1 Air for a week, but decided to return it.)