Thanks to the multiple choices of data centers, Vultr can be quite fast for most locations in the US. Other factors that also contribute to fast speed include the utilization of SSDs, the last generation Intel cores, and 10 GB network connectivity. But occasional network issues still slow down the page loads. See the chart below for Vultr server response monitoring in the past day.
If you go with Vultr, you should pay much attention to the company's network issues, because all the data centers except for the one in New Jersey are single-homed with only 1 bandwidth provider. If the connections fail, there is no backup solution, and your server will be left in the wind.