Building regional data centers take a longer period of time no matter if they are prefabricated due to the most likely occurrence of construction, sanctioning, and local compliance challenges. Moreover, dedicated power sources and cooling equipment are mandatory for building the facility.
However, latency will be directly proportional to the physical proximity of the data center to the users and the workload, and the number of hops in between. Edge data centers are the best alternatives as it brings bandwidth-intensive data nearer to the end user and latency-allied applications nearer to the data.