I can only speculate about the filter performance as a layman. When the water but (because of the lower bulk density of the filter) passes much more quickly, it would surprise me if the result would be better (or approximately equal).
I wanted to return the whole, but the dealer refused a free return shipping. Therefore, I bite the bullet, keep the filter and pour the water just several times. Is an annoying Gepansche, but that's learned the hard way!
Small incidental. The originals have raised tabs, where you can pull out the used filter beautiful. This is also missing this