I second this concern. I, too, have grown love the new dynamic lighting system, but for 2 Sundays in a row now the lighting seems to cause massive lag in the game and absolutely ruins gameplay. It usually results in me turning dynamic lighting off, but this isn't what I'm paying to be a premium member to do. I never seem to have these issues during the day, but all of a sudden on Sunday nights, when it's game time, Roll20 lag seems to be a major issue as of late. Alan M. said: I am struggling with Dynamic lighting. I really like the idea, visually it looks great, however, not being able to move tokens on the map because of lag is painful for the players and the DM (me). I keep reading, adapting and when I think i have it beat, it lags again. How big of a map is maximum size. Would I be better off mixing Dynamic and Advanced fog of war. I have spent all of my time using dynamic lighting and designing maps to make the most of dynamic lighting, using secret doors, narrow corridors, relying on line of sight to reveal important elements, monsters and NPC's. But both my players and myself constantly get stuck. It seems to change day to day even with the same map setup. I gave up today and eleminated all dynamic just to finsh the game. Any insights, suggestions or ideas. I did roll a natural 20 on insight so give it up if you have it, LOL. I have an I7 processor @2.7 Ghz. with 16 gig Ram.. I only have issues in roll 20 with dynamic lighting, so a strong wifi and internet connection. using google. I am also not real computer tech savy.