How do I expand my perlin noise project.

Hey guys, i am relatively new to construct, and i was working on proceduraly generated levels for a 2d minecraft like game. I was using the noisejs plugin to create the levels with perlin noise.

Here what i came up with :

so the layout is 4096x4096 pixels, and the whole thing is an array of 256x256 squares 16px each.

Now the loading time is through the roof, is there any way to reduce it?

is there any way to make levels bigger?

Thanks.