Forgive me, but I went ahead and edited the mission, cut the numbers by half on both sides and it was a huge help. I also gave the German fighters a clean configuration; no gondolas for the 109s, MG151s for 190A-8s instead of MK108s, and no cannon pods for the 110s. That way they are all more enjoyable to fly. After all, we're not shooting down 4 engine bombers here.
Lastly, it'd be nice to extend the fighting section of the mission. Even with half the numbers, I'll still can't finish the fight before I'm warped to the airfield for landing.