Increase the size of tiled sprite

How do I increase the size of my tiled sprite? It is 16x16 and as I tile it across it looks very small and I am unable to make it look bigger, the temporary solution is to increase the dimensions of the tile from 16x16 to 128x128 but that increases the file size largely.

How it looks :
How I want it to look :

Thank you

I think the Camera zoom action is the only option.
Or don’t bother about ~9KB more.