With 'zero-latency typing' enabled (which it is by default on current versions), IntelliJ rates well on typing lag comparisons which are probably the most consequent metric for 'feel'.
True I can't stand typing in a "text editor" only to see it lagging behind. That wasn't a thing back in DOS and that shouldn't be a thing today!
I've always had problems with IntelliJ IDEA feeling extremely slow and have never been able to figure out why. The mouse cursor even skips when it's doing anything intensive. This is on a machine with 4 cores @ 3.2GHz and 16GB of RAM. VSCode seems much faster.