To clear the cache of Discord, you do not lose chats or settings, but goes out of Discord entirely, after which it goes to a folder on your computer called the cache. On windows, open Win + R, enter the path as C:\Users percentage appdata percentage disord percentage cache percentage and delete everything in the folder. In Mac, delete the contents at the path of application support at discord/Cache. Then, start Discord again - the first time it could work slower, but it tends to resolve the performance problems. Your messages and environments will be maintained.