Post TTP Expert+ super low QUANT, really high VERBAL.... why?!?

Practice Tests:
#1 Q43 V40 - 680 (23 of 31 correct in Q) Avg Time/Q: 1:59
#2 Q47 V41 - 710 (18 of 31 correct in Q) Avg Time/Q: 1:59
#3 Q44 V38 - 660 (22 of 31 correct in Q) Avg Time/Q: 1:59
#4 Q48 V38 - 700 (22 of 31 correct in Q) Avg Time/Q: 2:00
#5 Q44 V41 - 690 (21 of 31 correct in Q) Avg Time/Q: 1:59

I am consistently hitting around 90th percentile in Verbal practice tests (which I am happy with) and below 50th in Quant:

I have 100% completion (90 Overall Accuracy - 94% problem, 79%DS in Your Analytics TTP), 100% completion (91% Overall Accuracy - 90 SC, 92CR, and 92RC).

***probably worth pointing out is that my avg queston times are a lot longer on TTP 3:21 PS, 3:43 DS. (3:18 avg correct, 4:46 avg incorrect). I also completed the course over many months so perhaps there was some knowledge loss. However, I have reviewed the content frequently IMO.

I think it has something to do with how I'm responding to novel problems and uncertainty under pressure, but I'm open to missing something completely obvious to an external viewer.

ANY advice would be greatly appreciated. Quant is holding me back from my target score of maybe 730-50.

I have taken the practice tests on the Saturday of each week and I have reviewed my wrong answers in between.

I currently have an exam scheduled for around 9 days time, and I am unsure whether to reschedule it because I know that I can easily do better in QUANT but I don't know if it's a quick fix or more months of study. I have spent like 900+ hours studying at this point.