14x image loading speed (Windows, 5.7s to 0.4s)
1.4x vp9 encoding speed (144s/2m24s to 103s/1m43s)
And the two new filters are cool too.
EDIT: note, the vp9 render improvement measured in the video is wrong. I exported it at a much lower resolution in the new version by accident. The speed increase is 1.4-fold not 3-fold