When I tested the Su-34 on the dev its not at all noticably faster than the Flanker
Acceleration is less irrelevant at higher altitudes where maximum speed is more significant, the faster you’re going the further your missiles will reach and with a faster scanning radar which will hold soft lock far better I’d consider the SU-34 a far better aircraft than the J-11A for BVR.
The RWR on the SU-34 and that being the SPO-150 can discriminate different types of aircraft, in BVR this is VERY important as you know what aircraft your engaging and what it’s good and bad at.
Its a lot more than a hinderance, its a detriment. The lack of an HMS makes it difficult to fire offbore fox 2s
And that’s exactly why it doesn’t sit at 13.3, you can’t have everything with a single aircraft or at this time frame at least. The J-11A does have the advantage of having a HMS but that’s really it (MAWS is more a** than helpful).
Also I forgot to mention the Su-34 drinks a lot of fuel
Good fuel management can get one very far, this is basically essential for most modern afterburning aircraft with few exceptions. The SU-34 is also one of the only and if not only Flanker variants which get a external fuel tank to levy this exact issue, funny you forget that part.