I think NBminer is better than Trex for LHR GPUs, it's more stable if you can use the settings recommend by the developers, the stable highest I've seen is 58MH, find the right tweaking using HiveOS forum Search engine, good luck
I'm a NBminer user too and I totally agree.
This software is great with LHR.
I'm using 3060 LHR with it and it is far from deceiving me.