you might want people to post their computer specs also
the largest map ive made, compiled on 2.4 ghz i3
2516 portalclusters
6930 numportals
0...1...2...3...4...5...6...7...8...9...100...1... 2...3...4...5...6...7...8...9...10Optimized: 7628 visible clusters (0.00%)
Total clusters visible: 463401
Average clusters visible: 184
Building PAS...
Average clusters audible: 759
visdatasize:725130 compressed from 1610240
writing c:\program files\steam\steamapps\xsergis\sourcesdk_content\tf \mapsrc\cp_morras_castle_a34.bsp
5 minutes, 41 seconds elapsed
your unreleased alpha is bigger than 23452354th version of my hugemap. do you have any complex shapes that are worldbrushes?
there are a few ways to speed up vvis compile. also as a last resort you could just compile overnight.