After upgrading my PC and reconfiguring all my settings, I wanted to look into configuring my internet connection to make sure I'm getting the fastest possible speeds. As far as downloading from services like Steam goes, things seem to be working just fine. But when it comes to streaming services (like Twitch), I get some chugging/stuttering. Also had a laggy multiplayer match in Super Street Fighter IV, but I haven't played enough multiplayer to verify if it's a problem on my end.
I've had experience with Port Forwarding in the past, so I'm willing to try that if it will help things. If there are other, more reliable methods, I'll try those as well.
I'm on Comcast cable, and the modem is directly connected to my PC. This
is the modem I'm using.