Ok, so finally got my FTP wrapped up and was able to ride it this weekend

Despite the bike riding smoothly with no issues, the drivetrain is a little on the loud side. Initially, i thought that maybe the PO has put on a 3/32" chain on 1/8" chainring/cog but after some investigating this turned out to not be the case. FSA front chain ring, Surly rear cog and SRAM chain (PC7x) that all are 1/8". I doubled check to make sure it wasn't the rear hub but that wasn't causing any noise at all when the chain wasn't attached. There is roughly 10mm of play in the chain along with the chainline being straight.

I googled to see if I could find any answers and the best one I could find which kind of makes sense is that sometimes components just need to be worn in but I believe these components have a few hundred miles on them at this point.. Is there something I'm missing? It's not rocket science, its 2 damn gears and a chain lol