Deinterlace-method not working properly?

hello,

i have installed kodi 17.1 on my windows 10 HTPC (core i5 4670k, gigabyte b85, geforce gtx970) and i’m using dvbviewer recording service to watch TV with kodi. under settings/PVR&TV i have set the display refresh rate to 50 Hz according to a setup tutorial. a display refresh rate of 59,9 Hz is not working on my samsung TV.

but when i’m watching SD TV (mpeg2video, 720×576) the picture is jittering, especially the upper border of the screen and text/words are jittering ~1-2mm up and down on the screen. if i switch the deinterlacing method from DXVA to inactive (there are these two options only), the jittering is gone, but the picture quality is bad (you can see horizontal lines). i tried several video scaling methods but no change.

do you have an advice?