Check the settings for hemisphere mode (disabled), NUMA (disabled) or node interleaving (enabled). All three refer to the same technology but the name varies depending on the vendor, including hypervisors.
If you see 4 groups of processors, looks like it is a 4 socket server, most of which are not recommended because how the QPI link is built and the time it takes to jump from one CPU to the next with available memory, which basically means NUMA cannot be disabled.
Also, how many are the physical cores? Intel allows to enable hyperthreading which creates two threads for each physical core. This is not set up by default and needs to be checked with the vendor, some hypervisors or cloud services, like AWS already provide threads, not physical cores.
Even that, hyperthreading in a 4 socket computer can have a bigger impact in performance for the worse, as there are more CPUs available but not interconnected.