Help needed - Im stuck

[MrPaul2003]

Im a pretty novice PS3 gamer. I love IL2 but I'm stuck. Both on the "Hornets Nest" in the campaign mode, and "Escort" in single mission mode, I keep failing because I'm "too slow". Ive tried dozens of times on each mission and cant seem to get fast enough not to get this message, even though it feels like Im doing little other than destroy enemies.

Can anyone give me some tips?

Thanks

Paul R