Or take a 1/4 drill bit to it.
Unfortunately the regulators know about this and are making it more difficult to fix the situation in new construction. In one of our bathrooms I made the mistake of installing a new style Tub and Shower Faucet set. The flow limitation is built into the faucet not the shower head. Because it uses "cartridges" to control the water it is very difficult to modify. I had to pay a lot more, but on the next bathroom that I remodeled I made sure that I purchased a faucet that was an older design. The same situation happened with our utility sink faucet downstairs... it is impressive looking but it takes a long time to fill up a mop bucket or the sink.
Possibly the most maddening situation is with new dish washers. We have an old dishwasher from 25 years ago, it gets the dishes very clean after filling the little cup with cheap detergent. The new one takes over three hours, you have to buy special detergent and a bottle of expensive chemicals to put in a separate tank that aid in drying and keeping water spots off of everything. You can skip the little blue bottle, but the results are less than satisfactory because for the entire 3+ hours the dish washer keeps using basically the same water over and over. I don't know how it works but it is all about saving a couple of gallons of water and wasting a ton of your time.
And the situation with clothes washers is crazy as well. You used to be able to fix them after 20 or so years with a few cheap replacement parts. New ones are basically disposable.