But the good news is you don't need to keep it running in the background. The AutoWall.exe used about 10MB in the background. It is advisable to use images and videos which are smaller in size, so it doesn't impact your system or uses up your laptop's battery. a 2MB GIF used about 70MB, while a 170MB video used around 100MB of RAM. IF your wallpaper is larger, the resource usage will naturally be higher, e.g. MPV's performance was at 3-5% CPU, the memory usage was at around 50. What is the performance impact of AutoWall? Most of the GIFs I recorded were pretty huge in size, so here's a short sample of the Mario wallpaper.

The application also comes with the Weebp open-source wallpaper engine, which AutoWall uses along with the MPV video player in the background to display animated wallpapers. There is a reason why it is so big, the program ships with the MPV executable which is around 60MB and has a couple of DLLs required for the player. When extracted, the folder measures about 64MB in size. AutoWall is a portable software and comes in a 23.5MB archive.

Windows 10 gif as wallpaper