It's kind of inherent to the "everyone validates all the transactions" model, unfortunately. You can increase the exact number of transactions a little at the e

It's kind of inherent to the "everyone validates all the transactions" model, unfortunately. You can increase the exact number of transactions a little at the expense of making transaction validation more expensive for everyone, but it still won't get you to Visa scale. That's why the Bitcoin developers are so keen on off-chain transactions in the form of the Lightning Network. Unfortunately, it gets even worse if you want any kind of anonymity - all the techniques for that lead to much bigger, much more computationally expensive transactions.