and I like what you say: 100 hrs and only one CTD. Pretty good for a new game.
Yes, buts that me. Others seems not to be so lucky.
Don't know what is or what they did wrong (speaking of KCD for PC only!,
I know nothing about KCD on Consoles), but they complain a lot on KCD forum:
https://forum.kingdomcomerpg.com/but the tenor is the same as I see it on Steam:
incomplete error reports but much more scolding, whining and bitching.
Maybe thy messed up with Mods (available on Nexus):
https://www.nexusmods.com/kingdomcomedeliveranceOr they aren't able to understand how to play the game.
Whatever, when I'm not sure how to do a quest correctly I google it.
There is a lot of good help available.
Hope my puter can handle the graphics
I can speak for my rig only: Gsync saves my ass in all the games.
I can even play games with sometimes 20-25 FPS only and have
no stutters. But with 30 FPS all is good. No tearing, no problems.
Disadvantage: Gysnc-Monitors sadly really are expensive.

My GTX980 alone wouldn't do it I'm pretty sure (speaking of 2560x1440
with very good settings and ie distant objects set to max, etc).
But the combination of the 980 and the Gsync HW/SW in the monitor
provides a lot of power.
I would say, buy it when its on sale in a few month,
then most of the glitches people are complaining about so much
should have been patched. I have no problems with this glitches,
they do not really spoil the fun for me I have with this game.