dudupro :
low, but, it should be higher, because it should run bf4 with low and lil fps drops
I can't find much info on the 740m in particular, but the gt 740 (desktop version) is a very entry level oriented card, even lower if its the gddr3 version. Typically the gtx 750 is seen nvidia's entry level gaming card (denoted by the x in the model name generally speaking GT models are non gaming model cards)
It sounds like you are comparing against a benchmark, given your statement about bf4, would you mind linking it so we are all working off the same info? A full spec list for your laptop would be helpful as well.
My guess is your card is performing as expected. Does altering the settings/resolution improve performance?