Sunless Citadel Performance Issues

Hello, i've been away for awhile, and recently came back to run this game for 7 players. I'm REALLY hoping this is some setting I have enabled that is causing my performance issues, because it is affecting everyone in the group. It takes SO long for tokens to be moved, manipulated, selected, etc. This is happening to all my players. This is literally unplayable. What gives? I know the first dungeon map is a little on the larger side, but is this normal? I have Dynamic Lighting enabled, but no fog of war. I have 5th edition OGL companion script enabled.

I've only had a brief look at that module, but I seem to recall that all the monster tokens have the "Has Sight" option turned on, which really degrades the performance.  I think there is even a note about it in one of the handouts.  I have no idea why they turned that on, is really not needed for the monsters

One of the first things I did when prepping that adventure was to turn sight off, although I did not find that it degraded performance significantly, it made it confusing for me the DM to see what the lighting situation really was. Here is a script you can use to modify sight on a wider basis. Use with caution.

I already hand removed all of the npc tokens to remove sight, and it didnt really change things. Its still a laggy unplayable mess.

Weird, it seems to be much better now after exiting and re-joining. I also disabled my API scripts to make sure that wasnt it, however re-enabling them did not re-introduce the performance problems. So it must have been the sight enabled on npc tokens, and the performance hit required a restart to take effect.

Can you post your page settings and sample token settings? I ran that module with a group of guys with mostly older computers with no issue in lag. EDIT: NVM, your post came in while I was composing mine. Have fun with the adventure!