There is no real method to speed up mining, the rewards are shared between all users, so as more people mine the reward for individual users will reduce.
The system is designed to be as fair as possible to all users, and the more data that you can share, the more rewards you will receive. Make sure that the app isn't closed, and that it is allowed to run in the background. Opening the app from time to time can help to make sure it stays active. Check your location settings to confirm that location access (GPS) is active on your phone, and that the app has been granted permission to access your location.
Want to make more GEOS? Help around, educate new people and make @GeoDino_BOT happy! Now, No one is late for the party!