Resize to larger screen too slow

[pickfire]

Terminal kakoune
Helix using latest master 661dbdc

When resizing terminal to a larger terminal size (full size), it takes like 2-3 wall clock seconds, but resizing it to a smaller terminal size doesn't cost much. It's like lagged for a bit.

[pickfire]

This seemed to be faster in fdb5bfa but still a bit laggy, almost not noticeable but still can be noticed.

[pickfire]

Seemed faster now.