Just upgraded to
JetBrains Rider 2021.1.4
Build #RD-211.7628.50, built on July 13, 2021
And now, any scripts with more than 4k lines of code are very slow, impossible to work with.
Also, using Unity 2021.1.15, Windows 10 Pro, but it was working great with the version prior to this one.
Any suggestions? Can I go back a version?
It becomes normal with no Highlight settings on, but then it is just like another notepad, LOL