Randomly clicked on some of the provided links: One was an acknowledged bug that was fixed in .1 version. Another one doesn't specify what hardware do they have. Like I said, stop using computers from 20 years ago and let the indexer do its thing. Since the navigation in Jetbrains products is so good it takes a while for the indexer to index everything especially in large projects. I was just using a macbook air (with Intel 2 cores cpu) with android studio with both java and c++ code. Not a huge project but it was over 100k of code. It worked just fine. No stuttering when scrolling. I don't remember having that problem in ANY ide for the past decade, not just Jetbrains.