Actually, I've been dragging my feet about what to do. Verizon did offer me a fios upgrade 2months free and no contract so I took that. But there is still lagging involved even with a 50/25 upgrade speed.
Since I only know enough about computers and networking to be dangerous; I'm not sure if it's my computer or the wireless router I currently run that is causing the lag. It's the original verizon standard router I've had for 5-6 years, but not N.