Hi Drespar, I have personally tested animations with Opera, Chrome and Firefox. In all of them, as soon as the pixel size of the animation starts going up, the animation makes the browser use a lot more cpu, and even though the cpu is not maxed out, the animations slow down considerably and stutter. It does not matter whether the animation was 1mb or 10mb before the upload. It does not matter if it was 30x30 tiles or an in-game upscaled animation originally 5x5 tiles. It does not matter if it has 5 fps or 30 fps. It does not matter if it's on a 2 second loop of 15 second loop. From what I could test, the larger the animation is (size in pixels) when rendered in the tabletop, the more trouble it has. The more it slows down and stutter in any browser. Edge / IE is not even worth mentioning as the animations don't even display transparency properly there, but that's the browser's fault. As I mentioned in the quote above, I can play several animations looping at the same time in the same browsers I am using to test without any problem whatsoever, even with the original animations I created which are much larger in size than what is allowed to upload to Roll20. But as soon as any one of them is in a Roll20 game, not only does it lose a great deal of quality, as they're compressed to ~10% of their original size (though that's a problem for another day), they play slowly and stutter. My point here is that browsers have tougher limitations than a desktop app, however a single animation shouldn't reach that limit. I could not help but notice that even though there's an overwhelming amount of reports , I could not find the performance problems in the known issues from the first post. I also could not find the Audio + Animations bug. There are a few reports in the previous thread with the corresponding console logs, it's even mentioned in Brian's quote above, and someone I helped with animation problems was having that issue as well. Some reports not in the old thread that may help or reinforce the issues of performance and quality inside Roll20: Memm said: The animations themselves are really well done, but unfortunately the effects almost unusable for large maps. Having more than two of the 25x25 or 30x30 animations active at the same time takes almost all of my CPU and GPU processing power (Firefox, 95-100%), freezing all animations and causing intense lag. Probably has to do with the way Roll20 uses animations, but unfortunately trying to cover larger map with these animations is not currently possible... The map I tried these on was 70x40 squares with dynamic lighting. [...] Yeah, unfortunately the problem is with the way Roll20 handles animations. Normally my CPU usage is -- even in a campaign with 5 years worth of stuff and large maps filled with assets -- around 5-10%. However, as soon as I add one 25x25 weather animation the CPU usage goes all the way up to 45%. Add in another and the CPU usage is ~80%. Third one clogs the computer. That's just bonkers. That said, these weather animations are superb. Shame that Roll20 doesn't work well with animations :/ Andrew said: [...] I gather Roll20 need to make some changes before these animations will be usable. Otherwise you may find a lot of ill-will created as other buyers come back here to bitch. I have been testing these now: 1. They only work in Chrome, not Firefox. I can't prescribe what browser my players must use. (In Firefox I get a black animated place holder to show where the animation would go, which covers up my map. Screenshot below shows 1 rain and 1 fog animation.). 2. They push CPU usage up high. Some of my players have crummy computers and will struggle. [...] Andrew said: UPDATE: I have found that if I disable Hardware Acceleration in Firefox, the animation works great! (but has a higher CPU usage). So I think the fault was not with the animation file, and not with roll20, and not with Firefox ... but with drivers or something related to my own PC's hardware. Big thanks to @Nick and @Stefan R for helping me figure this out. Teeleh 1 week ago (YT) I bought it and I really love the animations. Unfortunately, Roll20 is a resource glut and the animations bog it down even more. Here's hoping the animation layer resolves some of the stuttering. That's not a knock on you, though. Really awesome product. james reilly 2 weeks ago (YT) So pretty kewl; did have a question - within the video above the the effects are crisp and vibrant...for me the snow & rain are dull not white as in the video. Am I missing something? Rocking pretty good internet and have now issues with system. Colt Gross 2 weeks ago (YT) How do you use this I keep getting the black backround and cant place anything over it or it covers the effect or my map piece [...] I figured it out just so you know it only works on chrome not windows 10 I really, really hope that those can be solved by the time the "layer up" update hits the tabletop. I've been testing and reporting these things since before animations went live months ago. It's an amazing feature, but so far poorly implemented.