Magic Trackpad 2 became less responsive
Solution 1:
There's probably a few things you could try (e.g. making sure the trackpad has a decent charge, resetting the NVRAM and/or SMC etc).
However, the first thing I'd try is to reset both the macOS Bluetooth Device List and Bluetooth Controller.
IMPORTANT: This will reset all connected Bluetooth devices, including any bluetooth keyboard or mouse, so all Bluetooth devices will need to be reconnected.
Before commencing, you will need to have the Bluetooth icon showing in the menu bar. If it is not there, open System Preferences > Bluetooth and enable the option Show Bluetooth in Menu Bar.
Resetting the macOS Bluetooth Device List and Bluetooth Controller
Follow these steps:
- Hold down both the Shift and Option keys and at the same time click on the Bluetooth icon in the menu bar. Once the menu is showing, release the keys.
- From the Bluetooth menu, choose Debug > Remove All Devices
- Hold down both the Shift and Option keys again and at the same time click on the Bluetooth icon in the menu bar.
- From the Bluetooth menu, choose Debug > Reset the Bluetooth Module
- Restart your Mac
- Setup your Magic Trackpad 2 again
- Setup any other bluetooth devices
Let us know whether this helps.
As for how long it will last, the Magic TrackPad 2 was only launched in October 2015, so it's too early to say. However, if the original Magic Trackpad is anything to go by, you should get years of service from it.
Solution 2:
It's going to be a long shot, but:
- Sierra has been superb all along,
- at some point it started pushing these "Update to High Sierra" forced notifications,
- after a week of these problems started to occur - first the whole Mac became less responsive, then the Magic Trackpad issue occurred and for the last two days I could not use the Magic Trackpad at all - the cursor became jumpy, even when charging,
- NVRAM and SMC resets didn't help, jumpy cursor in safe mode as well,
- I never installed anything in the last weeks, especially the trackpad issues happened all of sudden,
- installing High Sierra fixed all issues listed above.
I can't help but think it's all not a coincidence. Maybe a funny way of asking people to upgrade? :/