The Keyboard’s Sounds and Vibrations can be Turned Off, If That Helps.
Certain features on your Android phone can be disabled to extend the battery life of your device. When using multiple social media or messaging apps, you may want to disable app sync in the “Accounts” section. Battery settings in the Settings menu should be checked if your battery life continues to be short or unsatisfactory.
The screen brightness can be decreased as well as the sound and vibration on your keyboard turned off to see if that helps alleviate the problem. The Language & Input and Preferences sections of the Google Keyboard are where you’ll need to make this change. These seemingly insignificant changes could have a significant impact on the outcome.