wow i'm having the worst sugared corn flakes i've had my whole life. I bite them and they bite back. I don't know if the shards in my mouth are broken corn flakes or broken teeth. It has a TON of sugar and carbs but it isn't sweet.
When exporting VX tilesets to MV (and MZ?) we usually try to upscale by 1.5x. Have you tried downsampling 1.5x instead, and then multiplying by 2? It'll look retro/pixelated. It might work a little better / be easier to cleanup!