Well this is annoying. My phone downloaded the 7.0 update yesterday and installed it (was on Marshmellow before) and ever since that there is now a bit of extra lag in my favorite mobile game (Final Fantasy Record Keeper). I didn't have these specific slowdowns before, these are new with the new OS update. I am guessing it has something to do to the change with the WebView thingi on the phone, since that game uses WebView, but I can't really be sure. Additionally, the new "split screen" feature that I don't want and never plan on using is messing with the game's UI alignment for some reason.
Unfortunately apparently I can't downgrade to the old version. Through research I discovered even if I did a factory reset it wouldn't bring me back to the old version. I am wondering if I take it into a Verizon store if there is any way THEY can downgrade it back to Marshmellow for me. Either way this is kinda annoying. This is exactly why I don't like forced updates.