It depends on a lot. Specifically, how is your department laid out, how many residents are working at any time, etc.
If all the other interns are seeing 0.5 pph, you're fine. If all you see are the high acuity patients who get big workups and get admitted, it's probably ok.
If you're working fast track, it's probably not ok.
Yes, right now you need to learn the medicine, but you also need to learn good habits at the same time. Efficiency doesn't mean speed. You can gain speed after you learn the medicine. It's tougher to gain efficiency. Once you're able to keep track of all of it in your head or on your list, carrying 10 patients at a time can be done. But the efficiency is what is key.
Every program should (but doesn't) give you a list of the pph of each person in your class and the classes ahead of you. Not at the end of the first month, but twice a year at your bi-annual review. Keep it anonymous, but you should know your speed and the speed of everyone else, as well as an average. Sure, half will be below average. But if you're an outlier, you should seek out help in what you're lacking.
If anything, we do an incredibly poor job of giving constructive criticism of residents. Speed, while not important as an intern, is very important at your community job. You can learn in residency while you've got a safety net, or you can learn as an attending and don't.