Adds up
yes but it is also the adaptation by Allied pilots to Luftwaffe fighters (and I would say also to some extent, Italian fighters) that generally had a higher combat speed and relied a lot on hit and run.
You mean they were already under attack and as everything's in disarray they get blipped out by somebody?
Yes like after the bounce (by either side), and combat is swirling around a bit, it gets hard to track every threat (this is perhaps one area in which mediocre and good fighter pilots are different) the really fast planes relative to their opponents - especially those which climb well and keep a high combat speed* - excel and become particularly dangerous.
Again - this is to be taken with a grain of salt and probably will be dismissed altogether, but in Sims like Il2, in early to mid-war Allied fighters you are often safer when the combat is spread out horizontally than when it is stacked up vertically. In the latter situation you are in very bad danger when there are 109s or Fw around.
Later in the war with planes like the Spit IX, Yak 3 and Mustang Allies gain the advantage in this regard arguably.
Ambush, get the drop, and get out...
That is basically Luftwaffe fighter doctrine, but it has it's limits. As has already been mentioned, it doesn't adapt as well to an escort role as was noticed in the BoB, nor does it lend itself well to situations in which a steady attrition is not sufficient, i.e. for example when enemy fighters are attacking your base, or must be stopped from sinking a ship or something. When the fight needs to be pressed home in other words.
Then they switch to their second favorite tactic of mostly vertical slashing attacks made on a continuous basis. Hunting around the combat area, keeping speed up to avoid getting bounced, and seeking out victims for surprise attacks. This is also similar how a lot of Allied planes fought Japanese fighters in the Mid-to-Late war. It wasn't as simple as just bouncing and boom and zoom. The difference is though that only some of the Allied fighters used climb (P-38) most of the others basically extended and kept the speed up but in a more horizontal plane.
S
* which is not always the same as a good top speed