somethings not right here

FWIW, I'm by no means an authority on fan air flow. I do recall noticing something similar on a car I had way back. Air was pulling in from the sides and little or no flow through the center. I didn't pursue it as there was no overheating issue.
I have noticed in other forums a couple recommendations.
.....the shroud should cover the radiator completely.
.....the shroud should have 1/2" clearance around the diameter of the fan blades.
.....the fan should be 2/3 into the shroud and 1/3 out.

BTW, MP recommends 3/4" clearance minimum between radiator and fan.