Aoeagle here. We install a lot of EDS TX, so a few notes for your build. An 11-36 12-speed cassette is within what riders run on the TX rear derailleur, and a KMC 12-speed chain with 52/36 rings works fine with it. Setup is where people get stuck: fully charge both derailleurs before pairing, run the calibration in the app, then put the bike on a stand and use the fine-tune to center each cog one at a time. If the RD hesitates going onto the 36, raise the tension value 5 at a time and retest. Up front, get the FD height and angle right before trimming in the app. Once it's dialed it shifts reliably, just not as snappy under heavy load, so ease off the pedals a touch on big-ring shifts.