Firstly your cleats , these will wear out depending on how much walking you do on them, generally they can last a long time if you limit the amount of walking , however some maintenance on your cleats help prolong their life, and help better retention , on the front edge of the cleat it’s good practice to take any feather edges off with a file .
The pedal body you are using although not as good as Look it’s used by a number of pedal based power meters so not all that bad.
Noises well these can be from your pedal bearings , either worn or dry, cleat bolts , pedal threads and maybe too much float, what colour cleat do you use
When I came back to cycling the thoughts were have a lot of float so you don’t get sore knees, so I used red cleats max float, however I found too much float hurts my knees so now ride medium float grey cleats or zero float black cleats , however I clean and lube my pedals every three months .
Would I change to shimano no not if I am happy with what I am using