Do you know why my car is not quicker?
We are not busting your nuts but you have to give us something to work with. It is likely that anyone on here can help you get it worked out but we need the details. If whatever Jim told you didnt work it's not because he doesnt know what he's talking about, it just needs to go to the next step. Tells us what happened when you tried all that and what we are dealing with.