jetbrains itself has performance issues, and you need to muck around too much to get them working properly.
the JVM also causes issues resulting it having to tune the environment params to get decent performance. JB makes tons of assumptions and attempts to be helpful in ways that just are not; precompiling automatically, running massive indexing jobs causing the machine to bog down, assuming it has the right to modify your environment.
these are all things I just do not want to think about when in essence I'm navigating directories and editing files with fancy hover tooltips.
the standalone versions are okay usually depends on the language. I just want an editor with code linting regardless of the language.
vscode in that respect has been a god send. install language server and you're done. performance is generally good and the background tasks seem thus far havent completely bogged down my machine.