Rhino 8 UI lag

Hello,

Some UI actions have a particular lag:

  • Creating and even more so dragging or moving a layer with buttons in the layer panel (my files usually have 100–200 layers in a hierarchy, so only part of these are shown at once), but little lag at folding/unfolding and renaming or changing colours…
  • much lag (like 5-10s at first, then like 1-3s) at opening the font choice select in Properties panel

No other lag to report than these. None in manipulating model or layout objects, nor significant lag in rendered views, does not feel like a graphics issue.

Does that ring any bell? Any kind of known issue?