Turbo mode is activated when the internet connection with the browser is slow. It speeds up page loading and saves your traffic. Pages contents, including videos, are compressed on Yandex servers before being sent to the browser.
When Turbo mode is activated, the Turbo icon appears in the right part of the SmartBox.
Two thresholds determine when Turbo mode switches on and off:
When the connection speed exceeds 512 Kbit/s, Turbo automatically switches off (and the icon in the SmartBox disappears). Turbo mode remains off until the speed falls below 128 Kbit/s.