When typing new classes at right panel, blocs start really lagging like in times pf windows 98, when any window becoming white and start cloning any background while moving this window (swatches)
When typing new classes at right panel, blocs start really lagging like in times pf windows 98, when any window becoming white and start cloning any background while moving this window (swatches)
Try restarting Blocs, and then your Mac (if the first doesn’t help). If it continues and is consistent let me know.