Weren't you using Dev Channel.. Did you switch to Beta?
I use Dev & take new Builds via WU (not clean installs from ISOs) and don't seem to have or see the glitches, issues or problems mentioned in the thread. And, I'm not even Irish. So, don't know why.
Except for occasionally various things will say (Not responding), momentarily, sometimes with an Exit or Wait box. Doesn't last long & whatever it was does go. Could well do without such behaviour, though❗
Oh & sometimes the emoji panel takes a moment or 2 to open.
This may be because the VM is not all that robust with 2G RAM assigned. But overall, no real complaints. Actually, I'm kind of liking/enjoying using and discovering 11. Everyone may not, but that's ok, too.
I'm glad to see the old snipping tool & Snip & Sketch are gone. I had wondered... always seems hard to understand (for me) when both legacy & new exist... I always wonder that it wouldn't be confusing to people. Fairly attractive design & layout to 'Snipping Tool'. Certainly, an updated, upgraded version of Snip & Sketch as opposed to looking or being anything like the old snipping tool.