Slow on Large Pull Requests

[jsoa-gp]

Describe the bug
Really slow on large Pull Requests (~1500 files). The process hits "Fetch diff PR ....80%" and hangs for about 20 minutes. There after the code review section loads and easily navigates. Adding a comment, then seems to refresh the entire section, taking another 20 minutes to then again be usable.

To Reproduce
Steps to reproduce the behavior:

1. Try to review a PR that has many files ~1000 files

Expected behavior
Large PRs to load faster, perhaps asynchronously

Desktop (please complete the following information):

• OS: Ubuntu
• Version: Emacs 28.1 (Doom Emacs)

Additional context

I realize that this might be a rare scenario of that many files to diff, and github web is practically un-usable and takes too long to make comments. I had to resort to use vscode with GitHub's PR extension to sanely review the pull request.

[ParetoOptimalDev]

If you are able I would advise trying out emacs 29 with native compilation and seeing if it improves performance.