need help taming a kitten

I have had a half Bengal kitten for 3 weeks. He is now 4 1/2 months old. He wasn’t handled much by the lady I got him from as her husband was in the hospital for the better part of 3 months and she wasn’t home. Loki hisses every time anyone walks by him or near him. But, he lets me get closer and doesn’t run as I bring him food. Any suggestions to help tame him a little faster? I need to get him neutered soon.