IntelliJ Rust is good, but has still the same problem as any other IDE for Rust (that is, RLS performance). You have to wait 5-10 seconds to get a feedback from the compiler :(

The combination that works better is Clion + Rust plugin, but just because you can easily debug w/ gdb.

I still have to try Rust-Analyzer, first time hearing it - hooefully this will improve my developer experience: heck RLS is slow as hell even with vim :(

Thanks for the tips Steve!