Sediment broken free in pipes has likely caused lower water pressure

Did u check the airerators on each faucet ? do that first---------- OLD GALVANIZED WILL MORE THAN LIKELY NEED REPLACED. I T WOULD BE COST EFFECYTIVE FOR U TO BUY A "PEXS" TOOL , PIPE AND FITTINGS , AND START REPLACING IT UR SELF, ANY ONE CAN DO IT !
I JUST REPLACE MINE AS EACH LINE GOES BAD, SOME NEVER WILL.

Yep I looked there first since that was the easiest to deal with. I left them off until I got everything back together and it seems to be working a bit better now. Shower is nearly 100% but the kitchen faucet isn't so I'm going to have to dig a little deeper on that end.

If I had to change the pipes out I'd definitely go with PEX but unfortunately it's not a realistic way to go at the moment. I would either have to tear down the stucco on one entire side of my house or I'd have to tear the kitchen cabinets and my bathtub surround out as well as the sheet rock in 4 rooms. It's seriously a last ditch in the world resort for me. Concrete slab here.