Nope. The wireless really isn't the issue though. What I'm having issues with are the wired devices.
You aren't pushing them limits of the wired network by any stretch. I would guess your bottle neck is your PC. Nothing you listed network wise should be an issue. I am streaming MKVs to my Xbox (which we all know is 100 base) and I've never had an issue. Do you have extra switches in the equation?