Peak IDE happened in 1998 with Visual Studio 6 for C++, and it had been down hill from there. Everything available today (and since then) is clunky in comparison. I kept using it until 2007 and had to switch because of the need to move to 64-but.
Computers today are about 20 times faster, and have 20 times more memory - and yet, all IDEs are clunky. VS6 on the common hardware of the time was ultra responsive.