Hey, thanks for the feedback! What were you doing with Soundslice when it felt slow -- were you zoomed out (such that there were a ton of annotations visible on the page)? Or was it just slow in general, even when it was zoomed in?
it's quite fast actually, I'm very impressed. I think what I was trying to say is that it doesn't feel native at times, but it's difficult to articulate why. Maybe I'm just conditioned to use webapps differently, and pick up on cues like slightly lagging cursors and such.