If you can visually see that the prop is bent, I would say that is more than enough to cause the condition. They have pretty low tolerances.
The pump is essentially the assembly that houses the impeller. It is sealed to the hull of the boat. If you caught a rope, and the seal was already weak, it could have tweaked that bond. There could also still be debris in the pump housing or intake causing the problem.
In addition to the pitch of the impeller, they also have different designs, some geared more for speed than hookup.
I am not sure, but you MIGHT be able to swap the impellers without actually pulling the pump. If that is the case, you could always switch sides, to see if the problem stays with the impeller or is a pump issue.
Cavitation is just an excess of air traveling through the pump... Another thought is the intake. If it is not feeding your pump with solid water, that could cause this problem. Perhaps new intake "scoop" style grates would help your issue, especially if it is just you in the boat and you are heavy. (ie. the opposite side jet from the side you sit on is the problem). If you turn the boat in both directions while accellerating does the issue remain?
ALSO, if you are cavitating bad, keep an eye on your temp. gauges. You are probably fine since you have two jets, but sucking air can be devastating to your cooling. (obviously)