Possible this is on my end (though nothing has changed with my machine), but I noticed you made some UI changes (nice!). I also noticed significant slowness is some of the ajax/js stuff.

For example, trying to remove my projections creates some odd behavior - sometimes the prompt to verify that I want to remove them never shwos up, sometimes it takes a minute to show, and when it does show, if the background isn't yet greyed out when it shows, clicking YES will do nothing.

Memory leak? (doubt that's a thing anymore), but my experience has been signficantly slowed since the UI changes yesterday or the day before.

Cheers.