As mentioned, you don’t need the electric fan. It’s just in the way.
If you were shifting at 8500 RPM that water pump pulley MIGHT be ok. For what you are doing it’s way too big. The pump and fan are turning too slow.
That’s the first 2 fixes I’d start with. They are cheap and easy. After that, if you still have issues you can go from there.
Also a new thermostat is a good idea. Just buy a good high flow thermostat.
That mechanical fan is close enough to the radiator it doesn’t need a shroud. The only benefit to one would be safety.
