Then you’re bringing the wrong loadout cause the Su-25 cannot even get to its own top speed
Mig-23ML is tied with F-111F in acceleration, and that’s with the F-111F having 12 500 pound bombs equipped.
Everything wrong with this takeoff: Flaps are being used, too many bombs.
If your goal is base bombing you only need 1 base worth of bombs, which is 2 napalm, or 2 3000 pound bombs.
Advice: 1- Never use flaps on takeoff, your takeoff speed is 310kph IAS without flaps so you’ll be fine.
2- If your goal is base bombing, only bring 1 base of bombs. 2 napalm on one pylon will do the trick, here’s the loadout I tested with:
3- Increase your fuel to 77 minutes for a longer burn time.