

So this is DEFINITELY A SOFTWARE PROBLEM of macOS Sierra.

A Macbook with a removable battery is the best candidate to do this trick, make sure your Macbook has a removable battery in the first place. The SMC on a Macbook receives power from the Macbook battery, and removing the battery could be one of the easiest ways to reset the SMC. Now we upgrade to macOS Sierra, then scrolling problem happens, to a large group of people, to some specific applications. Disconnect and reconnect the battery to fix trackpad issues. On my MacBook Air, Mac OS X Lion was pre-installed, then it was upgraded to OS X Mountain Lion, then OS X Mavericks, then OS X Yosemite, then OS X El Capitan. Rebooting to safe mode cost me more than 20 minutes. Reboot to safe modethen reboot back - No effect.To fix the problem, here's what I tried one by one, suggested by some expert: However, Safari, Pages, Chrome, Sublime Text 3, Evernote, anything else that scrolls continuously but not line-by-line, behave normally. When I say "lightning fast", I mean when I swipe with two fingers from bottom to top of the trackpad of my MacBook Air, the Terminal application scrolls about six pages, or the P圜harm app scrolls about 250 to 300 lines. What's in common is that they scroll line-by-line, but not continuously like Safari or Pages. I happen to know two types of software which scrolls lightning fast in macOS Sierra:
