Lag in Wuthering Waves can have several causes: the device you are playing the game on may be struggling to meet the system requirements, or it could be a server/network connection issue. There are a few ways to fix the game if Wuthering Waves is too slow; check out the troubleshooting tips here.
How to Fix Random Wuthering Waves Lags and Stuttering on Your PC – Tutorial
One or more of these steps will help keep your game running smoothly and without interruptions.
Having resource hungry programs running in the background at the same time will put extra stress on a game like WuWa, leading to lag, stuttering, and frame drops. Make sure to disable all other unnecessary processes and only run Wuthering Waves for the best possible performance.
Speaking of performance, you may have to sacrifice some graphical quality to reduce lag in Wuthering Waves. Go into the game settings and lower the settings bit by bit to see what works best for your system/device.