2007 silverado Gen IV 4l60 trans 4x4 Low Shift points

[CornejoGSR]

Im trying to figure it out if there's any way to adjust these parameters? i Just can't find them, not like the P01 or P59 that show 4wd Low...

Because i test the truck in Sand Drags and it request the shifts pretty quick...

1->2 ------- 2600 @ 7mph
2->3 ------- 3900 @ 24mph
3->4 ------- 4900 @ 50mph


I mean the revs are going up pretty fast so the actual RPM the next gear engages is something like these

1->2 ------- 4100 @ 13mph
2->3 ------- 4900 @ 30mph
3->4 ------- 5100 @ 52mph

hope these info is clear enough and find some help in here... Thanks!

attached some images of what Im talking about

[CornejoGSR]

Anyone? Any help or ideas will be much apreciated