Switch to Sequel Pro nightly build. You can install it with homebrew. It’s very stable despite the nightly moniker. I haven’t had a single issue with it and it resolved several issues I was having with the regular release.
Yesterday after using Sequel Pro for years, I decided to give TablePlus a try and have been pleasantly surprised. Sequel Pro seems a bit snappier is some instances like when you run a few dozen (or thousand) queries from the editor, but TablePlus query auto complete is so much better than Sequel Pro, and I really like having to confirm changes rather than them running in real time as I update/create/delete things.