This is a problem for Russia as they really don’t have anything else before the Axehead.
R-77M isn’t in service and R-27EA wont fill the capability gap when Western nations have 120C/D
Meteors and newer MICAS.
At that point the Chinese Flankers with PL-15s will take over as the best Flanker
In terms of getting up to speed, it should help, even if I doubt it would match the other 14.0 acceleration. As for the dogfight bit, it wouldn’t fix the problem totally, but I guess it could help a bit by making you stand more on your engines.
more lift would also help you in BVR, it will help you turn into the notch and same if the drag gets reduced, less drag will mean that you accelerate faster
the R-27EA would defenetly bridge the gap to the 120C-5 as the ER and 120C-5 have nearly equal range, the EA being an active ER would match very well against the 120C-5, the sad thing is that gaijin would rather add the R-27EA which was a mock up only vaporware missile rather than fix the R-77, R-77-1 drag along with the Su-27, 27SM, 33 and 30SM flight models (same goes for the MiG-29’s)
It being in service is irrelevant here. If jet is capable and/or Devs consider it necessary (as compensation for poor performance, like the double racks on Su-27SM or R-27ER on Soviet MiG-29)
Personally, would prefer to just have ECM with explicit (game wise) purpose of tracking BVR imbalances (plus the introduction of new long range SAMs might push it a bit more too)
Edit: Although Snail can put a funny one and just add R-27P. Good luck notching anti-rad, lmao. But alas, we know their attitude towards ARMs