Doras were always support fighters and need a living team to be somehow successful. The ability to score a kill is based on the cooperation / mistakes of their opponents, basically you can quite successful zoom across the map and collect cheap 3rd party kills or stall out some rookies, but Doras are no solo planes.
Yes, you can energy trap some rookies in US premium Spits or F8Fs (above 6-7 km) but you are imho way too euphoric regarding their actual combat effectiveness. A good flown P-47 D-28/30 kills a Dora every day of the week. He tries to roll? Throttle down and/or use air brake. You might be able to out-dive some USSR planes, but at the end of they day they can just run.
Their main strength is the ability to turn into you in head-ons (with high speed & flap usage) for snap shots and the lack of compression at very high speeds.
But every experienced player is able to avoid those head-ons - and imho just a small fraction of players is able to utilize the excellent roll rate.
Flying non-meta planes gives you a challenge - and equals the playing field vs the sheer masses of rookies in better performing aircraft. Getting kills became way too easy (compared to 2018/19) due to the severe experience drop in Air RB and 16 vs 16. So you can either farm clueless rookies with meta planes - or give them at least a fighting chance if you fly a non-meta plane.
The downside of flying non-meta planes is obvious - as soon as you face a decent player you have serious issues and often u are forced to land and leave if they they refuse to make mistakes.
I aced the UK P-47 D-23 and the US F6F-5 in Air RB because they fly great with a HOTAS without instructor, are very stable and need a lot of patience & experience to make them work - and you are not totally helpless in full uptiers even vs similar experienced players.
Nothing better that have a nice fight (undisturbed) with an experienced pilot in a Yak-3 in the Hellcat (a beast) or play 1 vs 4 with the P-47 on Pacific maps. Your Ki-44 II is way too slow above 6 km…
You don’t need FR mode in Air RB - it’s an overkill.
Use a HOTAS and Simplified Flight Controls (SFC) and disable the instructor slides - but keep the main slider at “on” to use the auto-trimm function. U won’t have any accuracy in head-ons (and there is no point & click on 15 ground units in a straight line) but your plane is able to be flown to its full potential.
So if you wan’t to have fun flying - use a HOTAS even in Air RB. If you fun is connected to your kill score - use mouse aim.
Have a good one!