Bluetooth keyboard K810 and mouse T630 at the same time, repeating keys and mouse starts to stutter

I use a Lenovo Thinkpad Tablet 2, Windows 8.1(core edition), x86 (32bit).
If I pair a Bluetooth keyboard K810 and mouse T630 at the same time, with Wifi On, the keyboard starts repeating the keys and the mouse starts to stutter. Especially if WiFi is under load (when downloading something).
This doesn’t happens if I pair only the keyboard, or if I pair mouse and keyboard with Wifi OFF.
If I pair a Bluetooth keyboard and use a USB mouse with Wifi ON, everything works fine.
If I pair a Bluetooth mouse and use a USB keyboard with Wifi ON, everything works fine.
I think it is an issue with two Bluetooth devices paired at the same time with Wifi ON.
So here is a summary:
BT mouse and BT keyboard / Wifi ON ----> repeating chars and the mouse starts to stutter (bug)
BT mouse and BT keyboard / Wifi OFF ----> works fine
Only BT keyboard / Wifi ON ----> works fine
Only BT mouse / Wifi ON ----> works fine
USB mouse and BT keyboard / Wifi ON ----> works fine
USB keyboard and BT mouse / Wifi ON ----> works fine
Where is the problem? Is there any solution?
Solved!
Go to Solution.

I have solved the problem. In the Wlan-Drives-Settings there is the "Bluetooth Collaboration" option. I put the value to "Disable" and now works everything like charm.
Best regards, jC
Broadcom manual:
Bluetooth Collaboration
Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.

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