Castlevania: Belmont's Curse will target 30fps on Switch and 60fps on PS5, Xbox, and PC
Konami has updated the official Castlevania: Belmont's Curse website and listed the frame rate target for all platforms ahead of its October 15 launch for PS5, Xbox, PC, and Switch.
The website mentions the frame rate target is 60fps, but will be 30fps on Nintendo Switch. Note that this is a Nintendo Switch 1 game and not a Switch 2 game. It is unclear if the performance will be the same when running on Switch 2 via backward compatibility or if it will just stick to the upper limit of the 30fps target. You can find the snippet from the site below:
Minimum Required Capacity
Standard Edition: 8 GB (Nintendo Switch: 4 GB)
Midnight Edition: 10 GB (Nintendo Switch: 6 GB)Frame Rate
60 fps (Nintendo Switch: 30 fps)
Before this update, the eShop page for Castlevania: Belmont's Curse on Switch went live with pre-orders and the screenshots uploaded on the page look quite soft. It remains to be seen if that is how the final Switch build will look.
Castlevania: Belmont's Curse will be available for Xbox Series X|S, PlayStation 5, Nintendo Switch, and PC (Steam, Xbox on PC). Details for editions and more can be found here.