Question

explain how this shortcoming is removed in jk flip flop

Answer 1

The S-R flip flop has the disadvantage of meta-stability, if both inputs go high, the resulting state is unpredictable. The classic and overkill solution is the J-K flip-flop, where high inputs give a well-defined and deterministic output (within hold-time restrictions).

There is no good way to remove the disadvantage, it’s intrinsic, you either ensure that both inputs can never go up at the same time, or you switch to a a more deterministic flip-flop, like a type D or JK.