Why is GitHub UI getting slower?
August 27, 2025
Githubs performance has been rapidly degrading ever since they started rewriting everything in React.It’s basically impossible to view diffs now because they often fail to load, render correctly, or just are incredibly slow.
A popular thread on Hacker News asked why the Github UI was seemingly getting slower.
I’m not going to spoil the answer. Follow through and take a look for yourself after conjecturing as to why.
