Help better towing?

I recently towed for the first time with my trd pro
It is not a full-size truck and doesn't have the power plant to haul it already is a little underpowered stock in my opinion I added the trd intake and it improved response slightly also adding larger tires makes the vehicle slower I added K02 to my vehicle and took them off and went with procomps to loose weight but it still is slightly slower with larger tires. I added sumo springs to help with the sag i have a lot of weight in the rear at all times with equip fridge tent etc

 

1) just an observation and not sure if this really affect much but that trailer look to have a high towing tongue weight(wheels on the trailer much farther back then in the milddle)

2) get it tuned

3) a moderately re-gear the diffs (not too aggressive)

4) both 2 and 3

5) get a tundra lol but i'd just deal with it since it's just the weekends and it's just a bit underpowered

 

I gave ya a like, maybe see if you can get another, a little louder and longer?