Changing the animation speed is a little-known trick with Android, and can often make your device feel faster. But if you want to make animations faster than normal, you are left with two options – 0.5x the normal speed, or completely turned off.
What if you want something like 75% normal speed? Well, it turns out you can easily set a custom animation speed. Reddit user quantumsuicide wrote a fantastic guide, which I have made a bit easier for ADB newbies here.
Guide: How to set a custom animation speed on Android (works on stock devices) was written by the awesome team at Android Police.