Multiplayer Connection

Ever since I played a bit of Halo 4 again, basically this summer, my connection during multiplayer games has been awful. It’s very clearly worse than my connection in Halo: Reach multiplayer. I play both on the Xbox 360, both on the same internet connection, on the same hours, etc…

In nearly every match, people will be teleporting around, people that seemingly take tons of damage don’t die, stuff like that.

Is Halo 4 just that bad?
The only other explanation I have is that maybe I’m playing with Europeans in Halo: Reach, and with North Americans in Halo 4 (which would be due to Halo 4’s very low population).

Does anyone else experience the same?

The servers are weighed almost in all the games there is too much lag and you can not play well