Samurai Shodown director Nobuyuki Kuroki has an interview with Destructoid and some interesting details about the Switch version were given
The hardware specs of Switch differ greatly from the others, so it was necessary to do more research after the game on other platform was completed. We are sorry to keep our Switch users waiting, but we believe it will be a wonderful game on Switch.
…Since we use the Unreal Engine, it won’t take too long if we just need to output the data to Switch. But for us, the challenging point is making the game run at 60 FPS on the Switch.
Thanks to Safari Games, the company that oversaw the porting process, we were able to achieve our goal.For this part of the work, I only gave some advice. Porting the game to the Switch takes a lot of work and it’s a tough job. So, we really appreciate how Safari Games has done their job so well.