Could my router be causing me lag?

I just bought a new gaming router for gaming an streaming for around 200 bucks, I got it all set up. It's supposed to be 1900 Mbps but every time I do a network test I usually get 13 or 20 Mbps… Everything seems to be running way faster than my old router (which on tests got 68 mbps) but when I host a game on minecraft with my friend he lags a little and Iv been playing a little gta an it seems to be slower? Could this be psn? Everything els works fine (like streaming movies from my Gbox an Netflix) I also have a wired connected hooked up to my play staton.

Read more: Could my router be causing me lag?