When dealing with reports about the performance of blockchain systems, one has to be careful about how to interpret various figures and claims. Oftentimes, TPS (transactions per second) is presented as the only relevant performance metric. There's two important caveats though:
1) TPS suggests to be a simple metric which allows for easy and meaningful comparisons of various transaction systems. That's however not the case, because the achievable TPS figure depends on a large number of factors and parameters, often with seemingly minor changes making a big difference.
2) While TPS is an important metric for many applications, it is by far not the only important one when it comes to a resilient blockchain network. Oftentimes, high TPS figures are achieved by running the network with a small number of participants (validator / miner nodes). But that's not that big of a challenge. As an example, the global payment network of Visa processes an average of about 4000 TPS  and can likely handle 10x during high demand.