This is typically true of coffee produced at scale. Large batches are often overcooked, chemically cooled and then left longer on the shelf. The result of these things is increased acidity. I have found that I can tolerate the small-batch locally-roasted stuff much better. If you want to give it a go, find a local coffee roaster (often it’s just coffee shop that roasts their own). You’ll know it has a chance of being good if the bag has a “roasted on” date within the last week or two. Discard anything you haven’t used up before 90 days.