Congratulations you have discovered compression a long standing issue that has been plaguing this game for as long as we have had a top tier. F-14 IRAF has just gone from one of the most notorious beneficiaries of this phenomenon to a victim of it, but even then I’d still much rather be stuck in an F-14 IRAF against 14.0s then stuck in any 11.7 aircraft against the F-14 IRAF. “It would suffer in an uptier so it’s fine for it to slaughter in a downtier” is a terrible mindset to have balance wise and is why we already have absolute nonsense like the F-104 which is completely untouchable even by the missiles it sees in downtier at 9.3, the MiG-15bis ISH a negligibly different version of the MiG-15bis which was already strong at 8.7 but now at 8.0, the F-5C staying at 10.3 for years where it completely abused everything below kt, the Wyvern one of the fastest props in the game and given an air spawn at just 4.3, the BI which needs no explanation, etc. etc.
Fakour-90 and Sedjeel are both sufficient to keep it competitive at 13.0, or at least as competitive as any other airframe stuck there. It was too strong for 12.7, and a “compensation buff” with R-73 is a paradoxical decision (if it’s too strong for 12.7 with current kit then it does not need better kit for 13.0) and is how you get “compensatory” ASRAAM and IRIS-T at 14.3 when the Typhoons are, hopefully, decompressed at some point.