2002 Toyota Tacoma automatic 2-3rd gear shift

I recently purchased a 2002 Toyota Tacoma 3.4 4x4 with the A340f automatic transmission. I’ve loved the truck so far, but I did notice when driving the truck easy it shift into all gears perfectly, however when I’m on the throttle past 2k rpm the 2-3rd gear shift if a little hard, when on the throttle all the other gears shift fine and you can barely feel them, but the 2-3 almost feels like there’s a shift kit installed which there isnt. I do believe 3rd gear is a 1.0 ratio so maybe it’s just everything completely aligning, but hell I don’t know? I’ve read on some forms that other people have had this problem too and have experienced it since having the truck new. Does anyone else experience this?

 

I've the same problem. Anyone else?