Does height plays an imp role in having n njoying sex?

It should not: unless you mean a severe mismatch ie he is significantly taller than you.There are other factors that can enhance enjoyment of sex including the ability to relax,masturbation independently to climax,incorporation of romance & foreplay,true intimacy,quality time together outside the bedroom & feeling loved.Time taken by both parties to add some if not several of these approaches will be well spent