I think this post is self explanatory. Every time I alt tab out of the game to do something on my browser, it makes the game slow down a ton. This wasn't happening last season or even last time I played the game a couple months back. Now, it is happening more and it is getting to the point where the game is unplayable. I don't expect Bungie to do anything, but please, fix this issue. Yes, I've tried playing in borderless windowed and windowed fullscreen. I've tried all the different options, it does nothing. It isn't my pc because I've never had this issue prior to this season.