People have this weird idea that end of WW2 radars were superb items as good as today's stuff, it wasn't.
It was unreliable and easily jammed (RN major ships had jamming gear for metric radars in 1943 and millimetre/centimetre radars in 1944).
Airborne radars were even more unreliable and not that powerful, and their weapons not particularly potent.
As far as the RN was concerned Sverdlovs were a potent threat to convoys during poor weather and they regarded a suitable number of hunting groups (formed of a pair of Town or Colony class cruisers, or Vanguard).
It wasn't until the late 50's that the airborne radar became both more reliable and more powerful and specialist anti-ship weapons and tactics were developed.