Why does my 2002 Honda civic stop accelerating at 80 mph
Cause that's all the little car has to give.
It's topping out
This can be a result of a problem with the speed governor. You need to take your Honda to a qualified mechanic who will diagnose the real problem and rectify it.
Cause Hondas are not good cars try a mustang next time
Be grateful it goes that fast, if you keep pushing it not going to go anywhere fast.