I got an offer after a year of gap and I accepted it. The salary is a bit low but I did not want to take the risk. The joining is after a month, however I have final interviews with 2 larger companies next week which may pay better. My question is : will it be ok to accept better offer if I am paid more? What can be the repercussions of not joining the previous company? The employment is at will and doesn't need any notice period.

Thanks!