Sounds about right, there must be 5 times the surface area on the OE paper filter.

 

That looks like one of those (snake) oiled cotton ones, I used them for decades on Caterhams but only because they were the best of a bad bunch for exposed to the air sidedraft DCOE filters, when I moved on to motorcycle engines I fabricated a proper airbox using an OEM paper filter.

There is a time & reason for using them and that is when exposed to H2o.

Then they need proper maintenance.