Currently a Creations Director for a fairly known group. For some reason the amount of tremendous lag inside of the Script Editor is a hinderance to my work. I’m aware of the past topics of this (in which the methods they use don’t work), as-well as attempting to use the “unparenting” method to reduce script editor lag. I don’t know why this problem started, it only started 2 days ago.
Yes, it has happened to me once, but now it is gone. It occurs most on macs, also. Unfortunately, I don’t know how to fix this. It just stopped one day. People say that switching your color profile helps.
Here is an article on this: Typing in the script editor is extremely slow in macOS High Sierra/Mojave/Catalina
There seems to be a fix here