Render texture of tile sprite?

[ForgeableSum]

Is it possible to create a render texture of a tile sprite?

 

So, if the tile sprite were scrolling, any sprites that shared that texture would scroll as well? 

 

My predicament is that I've got a bunch of very small scrolling tile sprites and they are hampering performance because there is so many of them. They are all supposed to scroll exactly the same texture so I'm thinking there must be a way to improve performance. Can I set them all to a render texture and they will operate the same way with better performance?