Please add option for having velocity + supporting older android phones

[kasra-trendplus]

Please add option for having some form of velocity (that wanes over time based on the acceleration)
And also supporting older android phone browsers (like those that have android 2.3) as these phones are useless nowadays, lets get them back to life.

[Unrud]

• Rudimentary acceleration is already implemented, but the profiles may need fine tuning.
• Android support only depends on the web browser. I don't know what browser versions work on Android 2.3.