Had similar situation a few years before - switched a (now) billion revenue product from Read Committed to Read Committed Snapshot with huge improvements in per

Had similar situation a few years before - switched a (now) billion revenue product from Read Committed to Read Committed Snapshot with huge improvements in performance. One thing to be aware when doing this - it will break all code that rely on blocking reads (e.g. select with exists). These need to be rewritten using explicit locks or some other methods.