That's certainly true, mate. There are some tradeoffs that we need to consider, when making use of a specific cryptocurrency. You cannot enjoy full decentralization while experiencing high TPS at the same time. At the cost of lower speeds and higher fees, comes the decentralized nature you know and trust. On the other hand, at the cost of greater efficiency, and lower fees, comes the centralization factor into such cryptocurrency.

Depending on the people's needs whenever a specific individual wants to send money at a fast and cheap way, or simply wants to secure his/her money against external manipulation, would be such cryptocurrency that he/she will choose. Things aside, I believe that among the fastest cryptocurrencies to date are: Bitshares, Steem, IOTA, NANO, Coti, Constellation, Hedera Hashgraph, Ark, Lisk, EOS, Ripple, and Stellar. However, it's up to you to choose which is the most ideal for you in terms of speed, user-friendliness, and security most of all. Just my thoughts