GUI lag was caused by Kontrol MK3（Native Instruments）

Michiro_Sato · January 24, 2026, 10:27am

I was experiencing GUI lag when changing tempo in Cubase, and it seems that the Kontrol S61 MK3(Native Instruments） was the cause.

CPU Core i5 12400F

Windows 11
Cubase Pro 15.0.6
GeForce GTX1650（with Studio Driver)
Ultralite mk5

Mads_Vinding · January 25, 2026, 5:10pm

I had the same problem. Turning off MIDI output did the trick:

Michiro_Sato · January 25, 2026, 9:41pm

Thank you Your advice Mads Vinding.

However, I’m currently controlling Cubase via the Midi Remote tab.
And the Midi Output reflects the track’s response to the Kontrol mk3, so I can’t turn it off (I’ve been waiting for this feature for a long time, and NI finally included it).

If anyone is using a G Force graphics card and has had no problems, please let me know the specs and how to solve the problem.

Mads_Vinding · January 25, 2026, 9:45pm

So am I and it still works

Also using Geforce..

Michiro_Sato · January 25, 2026, 11:30pm

I’m sorry if my explanation confused you.
The “Midi Remote tab” I mentioned is the Lower Zone tab. I’m not using Legacy mode right now.

My laptop’s graphics is Intel(R) UHD Graphics with 128MB, and Cubase runs without any problems.
My desktop graphics card is a Palit NE61650S1BG1-1175A (GeForce GTX1650 GamingPro OC) with 4GB of RAM, but it’s really frustrating that it can’t display properly.
I connected the Kontrol MK3 to the USB-C port, which also serves as the power supply, but if I wanted to test it on another USB port, I would need to connect a special USB-C port for power. I’m currently ordering that USB-C supplier, so I’ll report back after that.

Michiro_Sato · January 27, 2026, 1:57am

When the USB Type-c Power Adapter arrived at my house, I tried it on all the USB ports on my desktop computer (including USB 2.0), but the result was the same.