Add-on management doesn’t affect how add-ons affect the game itself - all management tools do is download them and copy the files.
I haven’t discounted the very real possibility that Blizzard made some API change that caused some add-on to cause issues - but since they removed the ability to see LUA errors without an add-on loaded to re-enable that option (ironic, isn’t it) I’m betting things like this are going to have far less user feedback to help Blizz pin down the causes.
Yes, to Overwolf, but for now Twitch’s add-on management is still active. Again, though, it makes zero difference to the game’s performance.
Ah, the two aren’t related. I was using a torrent client when I noticed that issue last night, and also noted that when the download finished (totally legal I promise officers!) the frame hitching stopped.
It may be something related to the way the game interacts with the PC’s networking. It certainly wouldn’t be a bandwidth issue, as I had only around 10 Mbps being used of a 100 Mbps fibre connection at the time.
I also don’t keep any add-on managers loaded in the background btw. I just load 'em up every few days or so to check to see what’s in need of a new download.
