Beta testers have to keep subscribing to recurring subscriptions

I have an app that I distribute to beta testers via TestFlight. The app has auto-renewable subscriptions. In the sandbox environment the subscriptions expire at an accelerated rate; every hour. They renew up to 12 times. This means that my testers have to re-subscribe every 12 hours.

Is there a way to make the sandbox operate at realtime for certain users?

Beta testers have to keep subscribing to recurring subscriptions
 
 
Q