Enhancement request: Disable diffs for file type or for files over a maximum size/line limit

[rjtngit]

Problem description

Sublime Merge hangs when displaying diffs for some files. In my case, I have large .prefab files that are over 8 MB and can have over 60,000 line changes in a commit.

Preferred solution

I would like to either disable diffs for a file type, or, disable diffs for files over a specified file size, or if it has over a specified number of lines changed.
Sourcetree has this feature.

Thanks!