Getting bad gas mileage

Update: no air leaks car drives good
cold start
Shrift1 (%) -2.8
longft1(%) -5.5
shrift2(%) -3.4
longft2(%) -5.5
but when worms up
Shrift1 (%) -3.8
longft1(%) -8.5
shrift2(%) -4.4
longft2(%) -8.5

Also what is RPMDSD (Desired Idle Speed) for Ford Escape 2003 3.0? Mine shows 745-780 is it normal? Aand also when I turned of IAC sensor car was running much better about 650-700 (but some times was misfiring) getting better gas mileage now.

Can you show photo where is that screw?

Update car runs smooth
shrift1 (%) _0.8
longft1(%) _ 0
shrift2(%) -_0.8
longft2(%) -0
MAX
shrift1 (%) 7.8
longft1(%) -0
shrift2(%) -5.5
longft2(%) -0
getting 26 highway
19 city

Check engine light was off all time. Getting better fuel mileage than last three years.

Hello, update:
shrift1 (%) 28
longft1(%) 2.3
shrift2(%) 32
longft2(%) 2.3
car runs bad. :/ Only thing that I changed today is vacuum break booster (bought from junk yard) it's can be bad vacuum break booster? Car was running good when I changed vacuum break booster than car was running bad and rpm are high.