I was looking forward to see what the experts had to say, although upon looking at your report one thing popped out immediately to me.
Based only on gas exchange, my understanding of the uphill athlete position, based in part on this thread, is that your AeT lies between 107 and 120 bpm, probably slightly closer to 120. Call it 116.
I have always found it more difficult to interpret lactate graphs. So, I won’t hazard a guess.
But if, for the sake of argument, your lactate does show an AeT of 140, it seems to me that the same basic advice that Scott Johnston gave on Feb. 12, 2018, would also apply to you. You need to become fat-adapted so that you are burning 50/50 fat calories/CHO calories at your AET. Right now you are not burning sufficient fat.
Hope that helps.