I’m from the land of Porto wine.
And I can assure you that a wine with that much sediment would go straight to the bin. It is expected for a Porto to settle a bit over the years but not that much.
Not knowing how much you forked over for that bottle, I’m going to say it was too much.
Regardless, cheers!
Porto is the right wine for all ailments, be it physical or spiritual. Enjoy.