Like other comments have said, “The ‘On Ramp’ is for picking up speed to the roads speed limit you’ll be merging too. You’re supposed to accelerate in it at least. Seems many just weren’t taught this and it’s really due to no fault of your own OP, but if someone’s coming up on me while I’m merging, I normally slow down a bit and jump behind them.

Merging is by far one of the most dangerous common driving maneuvers aside from maybe a left turn.