Get a better comp- Nah, clearly the map is intensive on some systems, but I really don't know why.

I've done all I could to make the map run great on every system, and in a best case scenario, it should show.
However, people with many mods versus people with few to no mods get huge performance differences...
Unmodded: 65 FPS with 58 NPCs roaming the map
Modded: 13-15 FPS with 58 NPCs roaming the map
Both were tested on the same exact hardware.

If you lag, try the following steps:

1. Play the lowspec version. This should fix the lag for most people. Find gm_gilmancity_lowspec in your map menu.
   
2. Reduce model detail under options. This lowers the amount of polygons the animation system will need to move, reducing CPU usage and improving frame-rate.
   
3. Try disabling any NPC mods you have (Like VJBase addons and Combine PLUS). Don't worry, disabling doesn't unsubscribe you.
   
4. If you still get lag, try disabling all addons in the addons menu. Same case as before, won't unsubscribe you.

If you STILL lag after trying all of that, all I can say is get a better computer. My horrid laptop with a PENTIUM B950 can handle this map at 30 FPS on the normal version.