Features of this app:

1. Adjust game speed 1x-20x.
2. NO ROOT.
3. Supports any local APP.
4. Realize multiple opening of the same APP.
5. Perfect support for versions below Android 14.

Game Killer Speed Boost is a fantastic speed adjuster software running speed. It can adjust the speed of all kinds of software. Speed booster is easy-to-use, you can accelerate and slow down running speed,adjusting software to the speed you feel most comfortable with.

Game Killer will give you brand new experience while using sofeware. For example; with this program you can slow down the action games so that you can see the bullet's flight line and avoid it easily.