v13.1 Playback has slowed so much that it is unusable even though it ran ok in previous versions.
Since updating to 13.1 I have had to abandon projects and revert to older versions as playback is so slow and glitchy it is unsuable. The problem is present even when using low-res proxies at 1/4 res. As projects have been saved in 13.1 this has meant losing all work and starting again. Very unhappy. Please sort this asap!