Why such low torque?

As it makes a significant difference to available torque/power whether you are driving forward or reversing, it was worth finally giving your response in post #16 to the question Tombukt2 first asked you in post #2.

 

There was no first time you answered that question before post #16. Notwithstanding your "as I explained" effort to muddy the history of the thread:

You had not explained that you "backed into the slot" until post #14, and even in that post you still did not say whether you were trying to drive forward or reverse from that position later, after having been asked that specific question numerous times.

While "backed up to a shop door" would clearly imply driving away forward if it was a closed door, it's equally clear that a door you could back through far enough for your rear wheels to settle into the door track probably wasn't closed. So whether your next move was forward or reverse from that point was still never answered until post #16.

 

Anybody who can read the posts in this thread can verify both my reading comprehension and your misdirection.

 

Pushing the throttle all the way to the floor would allow enough power to the front wheels
to allow it to get out of the ditch....