There is a very easy way to quickly increase the speed of your fingerprint scanner of your device.
Following are steps to get it done:
1. Go to Settings > App.
2. From the top-right three dots menu, click on Special Access.
3. In it, select Optimize Battery Usage option.
4. In it, from the top drop-down, select All.
5. Now tap the search icon from the top-right corner and type "biometric".
6. You will see a single option and a toggle next to it.
7. Just tap the toggle to switch it off and boom. Now your phone has faster biometrics.
