Did you just notice that your IntelliJ editor is very slow all of a sudden? Is scrolling clumsy and do the animations crawl? Did you recently change your editor settings, by chance?
When this happened to me the other day my first impulse was to jump into the animation settings and then configuration files to tune the JVM memory settings as described in most Google results for ‘IntelliJ performance’. This was a red herring, though. I was way off.
It was my friggin font setting!
As part of a configuration overhaul, I had changed the editor font from the default to Lucida Sans Typewriter, one of my favorite fixed width fonts. This was the culprit for some mysterious reason!
To fix this problem change your editor font. I found that Courier, Monospaced, and OCR A Std all performed very well.
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