I thought you were referring to some sort of programming tool and no, nothing like that is installed on the machine.
It’s a fresh install of Mojave with very few extra apps installed… Chrome, Firefox, ARD, Microsoft Remote Desktop, Visual Studio Code (both release and Insider versions), Parallels, VirtualBox, and Jamf management tools. (Most of my work is done via local/remote VMs.) No extra kexts other than those installed by the above apps.
I’ve tried using ScriptDebugger on a fresh boot with nothing else loaded. Activity Monitor looks clean.
As for the slow typing, it seems to gradually get worse the longer I use the app, but sometimes it’s pretty bad after I first open my source file.
The source itself isn’t noteworthy other than the fact it is medium length (~1200 lines).
I’m taking a 6-week vacation on Saturday so we’ll have to pick this up in late July.
Thanks for the replies so far!