Sorry, but you touched upon a pet peeve of mine. You are supposed to merge on to the interstate at speeds similar to the flow of traffic (presumably close to the speed limit). That is why they are called “acceleration ramps.”
Nothing is more annoying than people who disrupt the flow of traffic on the interstate on ramp because they do not know how to “blend in.”
There IS one thing more annoying; the driver who is in the lane into which you are trying to merge who speeds up to prevent it, even though there was room for the maneuver.