KiCad is horrible on CURRENT

[Poul-Henning Kamp]

I updated to current three days ago:

	13.0-CURRENT #0 r363533M: Sun Jul 26 08:39:48 UTC 2020 

When I start cad/kicad (which I have not done in some time), the
gui is horribly lagging and often downright confused about
the cursors whereabouts.

I've tried switching between "fall-back" and "accellerated"
in kicad, but there does not seem to be any qualitative
difference.

One of the few diagnostics I see related to this is:

	07:33:34: Debug: window wxScrolledWindow(0x81a3f8000, ) lost focus even though it didn't have it

I have no idea if this is a kicad, Xorg or libinput related.

In my Xorg log I have a lot of (rate-limited):

	 SynPS/2 Synaptics TouchPad: kernel bug: Touch jump detected and discarded.

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