How fast is HOPLA Links?
HOPLA Links read performance is determined by the amount of read-volume a given link receives. Maximum performance for a link is not reached unless that link is being read at least a couple times per minute in any given data center.
Are updates to my HOPLA Links instant?

HOPLA Links is an eventually consistent system, meaning that reads will sometimes reflect an older state of the system. While writes will often be visible globally immediately, it can take up to 60 seconds before reads in all edge locations are guaranteed to see the new value.