Increasing Browsersync refresh speed

It would interest me to know if there is anyway of decreasing the time it takes Browsersync to refresh the page, preferably to below 200ms, perhaps by disabling some functions in the sage gulpfile? For instance, I’m only working the SCSS at the moment, but after I make a change it takes about 2.3 seconds to refresh. That’s quite a delay. Any ideas increase the speed?