So it hit 110F yesterday and i almost feel like cooling is slightly worse than last year.

Fan clutch was new last year and locks up/roars as it’s supposed to
Radiator is 2 years old, condenser 2 years old.
Water pump now has 120k on it...thermostat is a couple years old
Coolant level is good, reservoir cap is good holds pressure (2 years old as well)
Coolant mix leans 70/30 water G05

On the freeway at 3pm at the hottest part of the day at 75mph it’s still running at ~96C...slowing down it hits 108C (30-40mph). I know this environment is the extreme.

The fact that it still runs at 96C at 75mph tells me:
A) radiator is blocked, but that can’t be true because it’s new (no leafs/debris all clean no bent fins)
B) coolant flow is low so the heat isn’t being circulated fast enough, which would be pump related. I’m leaning replacing the pump, but I don’t know if I have no rust in system that I’m condeming pump for no reason.

Anything under 100F and ZERO issues, cools fine.
Any thoughts?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k