If you are getting job offers now, then you will get these after 3 months also. Therefore, will it not be appropriate to complete notice period and have smooth exit?
Relevance of the current job with that of future job apart, it is important for you to have unblemished relieving letter. Therefore, prudence demands to be pliable and show patience. Any kind of impetuousness might create negative impact on the career itself. Please note this point.
Thanks and Regards