[jen20]

Do you have some examples? I've used IntelliJ or variants of it (Clion primarily in more recent years) since ~2004 and rarely had any issues, but it's possible I'm missing some obvious things here.

[aPoCoMiLogin]

macos + 4k display [0] = enormous performance issues even on mac pro

[0] https://youtrack.jetbrains.com/issue/JBR-526

[radicality]

Wow, never had this, I use IntelliJ (for java) many hours everyday with 2x4k@60Hz screens (both running with hidpi scaling so even more pixels than 2x4k) and it’s always running smoothly. Running MBP 16”.

[atroche]

This has been my exact setup (except 15" instead of 16") for four years now, and I also have never had problems.

[gimboland]

Yep, and that issue has been open for FIVE YEARS. The related issue which promises a fix has "only" been open for two, however: https://youtrack.jetbrains.com/issue/JBR-745

[jen20]

Interesting - my own setup is the built-in 15" high DPI display, an LG 5k display and a Dell 49" ultrawide with a low DPI. I've not really experienced this. Probably scaling mode or similar.