in a particular application? pls help!

 

Except for perhaps some unusual application requirements, a higher slew rate op amp should work fine.

 

It may overshoot or even oscillate where the original part would be fine. Or not.

 

Phase margin/stability needs to be considered.

 

The slew rate has little effect on an op amp circuit's phase margin or tendency to oscillate, that's largely determined by the open loop gain and phase response. The slew rate mainly affects the maximum frequency the op amp can amplify with little distortion to a given output voltage.