My bit on #construct tips. Its a quick way to do texture streaming inspired by Disco Elysium. Cut image in pieces, put in folder and switch frames to current row/column. In result you will go from 15K image to running scene of 60Mb with 1k tile size. 1k still large so you can optimize it even more.

This is the first post here. If at any point you were sent here for a hint, the answer will be: 50152.