How do you deal with a distracting person who showboats during a church sermon?

My somewhat conservative Baptist church has been getting kinda Pentecostal lately. We've got an attendee that has been really distracting and I believe is making the congregation uncomfortable (I know I am). The preacher doesn't seem to mind, but if it distracts us, how could it not him? This person yells "amen, hallelujah, preach on, good word" after almost everything the preacher says. It takes our attention off of the sermon and places it on her. What would you do? I consider myself open with our preacher, but this is such a tough situation because all praise should be loud, proud and to Jesus. Who are we to say anything at all? Ugh. Moral dilemma. Oh and I have approached the distracter and all she said was "when I feel it, I praise him!" I guess i wasnt clear enough. Thanks