Is more bottom end torque possible?

Had a good ride on single track on a WR250R the other day and will most likely buy one and set it up as a touring machine. Happy with the overall power, but did find it lost traction pretty easily if I had to wind it out to do what I wanted. I guess powerbands are always compromises, I'd lower the gearing for sure on mine, but is more oomph down low achievable with mods? Tia

The bike will ride singletrack SO much better with lower gearing.
I fit a 51 rear for pure singletrack, bike will idle along at waling speeds, which is great when having to clear logs ect, and 2nd is very usefull in the tight stuff, and no need to rev the gears totally out, to have the next gear pull clean.

Some find the stock bike makes more low end torque, for me, it definatly helped with opening the airbox and adding a pipe.
The dynosheets I've seen seems to show more torque all across the rpm range with a modded bike with fuelcontroller, airbox mods and a different exhaust

I agree that regearing is the best bang for the buck. 14/51 for mixed use, and 13/51 for really gnarly stuff.