"INPUT FILE IS TOO LARGE"

[ExtranoGato]

Hi, when I try to load my Pokemon Sword save file it says "input file is too large" or since I'm not the only one with this problem, I use an emulator called Suyu (not Yuzu), if anyone knows how to solve this problem please help me. 
It could also be the fact that I used a randomizer but I doubt it, however the file is this one: main

 

[Kaphotics]

Have you progressed any bit within the game, like received your starter pokemon?

[ExtranoGato]

Yes I have in that save, now I've even finished the gyms.

The file is 1.5 mb and i don't know why and how to reduce the file size.

This is the same file but I'm further along in the story : main