Like I said, anecdotal. All of those speeds tests where done in the span of 10 minutes past midnight, in (which is safe to assume) the same location and with extremely great signal strength/LOS.
The problem with upload speeds in the 2.5 Ghz band is that the UL speeds dramatically fall off whenever you move away from the tower. Good speeds are possible, but on a few select areas near towers.
Do you have the TA correction option enabled under Preferences?
What I really need to do is get a decent sample size of B41 TA reports without the correction factor enabled, and record what the app shows and what the correct distance is. That would allow me to calculate what the proper correction value would be. TA is a funny beast on TD-LTE, I have always had a correction factor applied to the raw value.. so with the option enabled it's applying a correction to the correction.. 🤯