I would like to start of by saying that I agree with everyone who has said that your worship expression is yours, and you should not be required to do anything that is not comfortable to you. Your worship is extremely acceptable to God just the way it is.
That being said I think it is important to realize that the expectation of a leader and the expectation of a worshiper in the pew are two very different things. If you are leading Pentecostal worship then I would say a Pentecostal worship style would be an expectable expectation. The same would go for a worship leader in any tradition to conform to that tradition when leading. My advice would be to think about your role as a leader. Ask your pastor the expectations of being a worship leader. If you can’t meet those expectations you should consider finding another role of leadership in your church where you can meet the expectations.
“Deus nobis cerevisiam dedit quia nos felices esse vult” -Benjamin Franklin