Bug: Linux VVIS can take longer than VRAD even with simple map geometry.

[Trico-Everfire]

Describe the bug

With large maps that do have a lot of visleafs to create (but not really complex brush geometry, just regular squares) VVIS can take a very long time. With a map where the full compile lighting takes around 1 minute 50, VVIS takes about 2 minutes 40. It hangs on ...10 for a long while.

VVIS result:

VRAD result:

To Reproduce

Make a large map on Linux.
Compile with Linux VVIS and VRAD.
VVIS takes longer than on Windows.

Issue Map

I cannot provide an example map because it seems to happen semi-randomly.

Expected Behavior

For it to be on par with Windows.

Operating System

Linux, KDE Neon