Hello No problem with Roll20 at home but at work my configuration is a I5-7200U CPU with an integrated Intel HD Graphics 620 GPU and 8 Gb RAM and each time I lauch a game to prepare it, the other app are lagging. I've checked my task manager and Firefox/Chrome use about 25% of the CPU processing power. I've tried to whiteliste Roll20 in Ublock Origin, I have disabled my extensions, I have removed grids from my maps, I have deleted unused assets : nothing fix it. Is my pro computer too old for Roll20 ? Regards. Merlyn