Here was a 3rd party analysis from 2015, showing a reduction in latency when editing XML files in IntelliJ IDEA from ~70ms with large jitter to 1.7ms with small jitter: https://pavelfatin.com/typing-with-pleasure/#summary
I wonder if it's turned on by default today, 5 years later.
https://blog.jetbrains.com/idea/2016/12/intellij-idea-2017-1...
https://blog.jetbrains.com/clion/2017/01/clion-starts-2017-1...