Sprites that size won’t work reliably (and potentially at all) even on desktop, usually.
It’s been asked about on the forums a few places, but here’s my most recent posts: Large sprite issues - #2 by Silver-Streak
Question about preloading resources - #2 by Silver-Streak
At a high level, just know that sprites generally don’t go above 500x500 in modern games, for memory and rendering purposes. Even Spiritfarer’s sprites stay under that size (and larger screen-sized areas are made up of numerous chunks of sprites so they can load/unload from memory as needed).