Slow filtration is very likely just the result of some air getting stuck in the filter and can be resolved through simple troubleshooting:
1) Soak your filter on its side in water for 15 minutes
2) Give the filter a few gentle squeezes while it is soaking to release any trapped air bubbles, as seen in this video
3) Fill your Soma with the lid removed
Removing the lid and filling the reservoir directly over the filter should improve filtration speed. Once you have filled your Soma (about 2 reservoirs full), simply place the lid back on.
If you need further assistance, please send a quick video over to us via firstname.lastname@example.org and we'd be happy to check on that for you.