My S7 is glitchy, lags, runs very hot, shuts off Samsung health app frequently, freezes and more. All after the update. My battery usage is through the roof. Errors when deleting emails, gets stuck between screens, takes forever to load a page, etc. Is there a way to revert to the previous version? Until they fix all the bugs in Oreo, my phone really sucks. You pay so much each month for service and I can barely use the phone. I'm writing this in my PC because it was taking forever on the phone to type.