[Fan Speed on Thermalthake app]

Hi Team, 

When I first bought my fans, Iremember the TTRGB Plus app had an option for fan speed, where I decided to make them noisy but keep the temperature cooler, not that option is gone, and I'm sure I'm not crazy because I looked up an old version of the app on youtube and the option was there, do you know what happened? or an alternative to make the fans go faster?