Comment 35 for bug 1454450

I have the same issue laggy only (no disconnects) with all my bluetooth HID devices, and it is the same on both Ubuntu 17.04 as well fedora core 25.
- Keyboard logitech K810
- Mac keyboard
- Dell BT mouse

The problem did not exist on very old versions of bluez at least with the Mac keyboard.

Restarting bluetooth service seems to fix temporarily.
I've tried also with no success:
- to reduce any possible RF interference (GSM phone, distance etc)
- increase NIce level of bluetooth
- stop upower service