Did you remove the water restrictors in the connections and especially in the faucet?
My other home has a 123' foot run to the master faucets/bath/shower after the addition. When I ran the pex lines, I made sure to remove as many elbows as possible to increase flow rate and removed restrictors in the faucet/shower lines. Pulling out faucet restrictors was needed on all three faucets and I drilled out the shower restrictor too. This allowed for a 120 second delay of hot water first thing in the morning. Also increasing the temp of the hot water heater helped.
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