Hey guys, iam new to this game and i started racing on some servers, but i came to the conclusion that the others were faster. My Question is, is it possible that the default FBM setup isnt the best for racing with the stock FBM? If this is so can someone share his setup with me so that i wont be slower than others?

Yes,default setup isn't too good. Pick one from here,test,practice: https://www.lfs.net/files/setups/FBM/BL00

Keep in mind too, that the fastest sets won't make it easier to control the car - quite the opposite, in fact.