Have you tried more volume above say 75%. You’re doin the standard ME , DE stuff. So the ME work is a hill climb, jumps of weight increase and rep decrease. So your basically going 45%,62%,74,81.5%88,93, etc. DE is pretty much flat 60-70% but waved over the weeks.
Try to knock out some volume above 75%, right now you only have 3 sets above 75 for one week, then the next week it’s a variation and you’re not coming around to comp bench for a couple weeks. You could do this on DE day. Not everyone responds well to DE work.
Percentage are estimated:
Try something like this
135x5 -45%
205x3 -68%
225x3-75%
245 3x2 -81%
265 2x2- 88%
or do a 5x5 at 220-240
Thats 5-6 sets above 75%