[zxaura1]

 Howdy "he" err, Alex.  Nothing wrong with what you're doing especially if your OLED is struggling and you're not using HTPC as all in one.  You will introduce lag in KODI GUI though but if it doesn't bother you... 

Now with the new card (1050ti) and the latest drivers things are much much better. Don’t know if it is the combination or one of them. I really didn’t noticed any difference in lag or anything else between 60Hz and 23Hz in KODI GUI. But maybe that’s my eyes or the TV. 

 Lag.  Sluggish GUI when navigating like from title to title you will notice it's just not snappy.  GUI prefers 60Hz but doesn't mean it won't work.

Yes, I understood.
Sorry for the quality but I took a small video using GUI in my 23Hz setup:

https://youtu.be/-q1YZ9m9htc

I don’t know if you can understand from this video, but I don’t feel any lag or I got used to it...