Help with beans(they taste bitter)

I was trying to make a pot of beans with the recipe I found still has about an hour and half til done. Is there something I can do to fix the taste now ? I tried a bean still pretty firm but absolutely no flavor and the sauce is lacking as well and doesn’t really taste good.

The recipe is for pinto beans I soaked them for about 8 hours. Added 2 cans rotel, cumin, garlic powder, onion, pork belly, chili powder Brought them to a boil and now supposed to simmer for 3 hours then add salt and cilantro. Then simmer another hour

I haven’t made it to the salt/cilantro yet I know that will help but like I said really not good rn and this is long wait so I really want them to be good and don’t want to disappoint family. I added bay leaves and a little more seasoning including paprika(didn’t help yet)

Is there anything else I can do to save them?