antybor: Ys origin constantly crashes in cutscenes after dalles fight.
Yunica and hugo walkthroughs i used only one core processor, but it not worked in Toal (at best game crashed after Cain battle)
I tried also disable videos playback.
Other games in YS works fine

Nester_the_lark: You might want to try the patch linked in this post:

https://www.gog.com/forum/ys_series/ys_origin_out_of_memory/post2

It worked for me.