Need advice for better sex life

So its been 4-5 years of marriage.my wife 32F loves me more than me ,ni doubt about that.BUT problem is i looove sex and she i think sje hates sex or think it as a chore which she only do because of me.she literally do nothing.just lay down.she makes faces like i am torching her.i don’t know how can i make her understand that you can enjoy it or its not a bad thing and you have to take part 50%.she’s not into new things,i tried to communicate also but her attitude is like get over with it. I understand that she has a different life.a conservative household.she’s religious also.but still its been 4 years..

tl;dr i dont want to cheat.i just want her in my life.i really really love her.but our marriage is almost like sexless.i want to fix thar.