I’m sorry about the problems that Inlage 4 took up to 100% of the cpu use if you open a file. But I fixed that bug certainly! Please reinstall the latest version – I hope there are no more bugs.
Download Inlage 4.0.3
Thanks!
PS: The problem was refreshing the code folding; if you have latex files with e.g. more than 2000 lines you should deactivate this feature to have less cpu use… But normal file sizes make no problems now, I think.

Seems to work. I think folding should be disabled by default since the program is practically useless for large document with the feature switched on.
How large are your files?
The first file I happened to open was 4000 lines. Even my 8-page documents can be up to 1000 lines.
I think the new version can handle 4k lines…
New release: up to 10000 lines and more but updating will take a while if you e.g. insert a new begin/end in line 15000…