After MacOS 15.5 update, HOTS freezes and is unplayable!

After the MacOS Sequoia 15.5 update, if I try to play HOTS, it’s mostly frozen. It’ll unfreeze for a few seconds, then freeze up again. Bumping it to low resolution doesn’t help, and I have a M4 Max with 48 GB RAM and a 600 Mbps Internet connection, so it’s not starved for resources.