<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY

Two vmware modules uses `copy()` to duplicate an internal instance of a pyvmomi object. This to be able to modify the object during an iteration.

- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_guest.py#L788
- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_datastore_facts.py#L220

As explain here, https://github.com/ansible/ansible/pull/60196/files#r312643761 this is not the best approach and this may impact the performance.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME

vmware

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
devel
```
elif isinstance(self.cache.get_network(network_name), vim.OpaqueNetwork):
                
                nic.device.backing = vim.vm.device.VirtualEthernetCard.OpaqueNetworkBackingInfo()
                network_id = self.cache.get_network(network_name).summary.opaqueNetworkId
                nic.device.backing.opaqueNetworkType = 'nsx.LogicalSwitch'
                nic.device.backing.opaqueNetworkId = network_id
                nic.device.deviceInfo.summary = 'nsx.LogicalSwitch: %s' % network_id
                nic_change_detected = True
            else:
                
                if not isinstance(nic.device.backing, vim.vm.device.VirtualEthernetCard.NetworkBackingInfo):
                    nic.device.backing = vim.vm.device.VirtualEthernetCard.NetworkBackingInfo()
                    nic_change_detected = True
                net_obj = self.cache.get_network(network_name)
                if nic.device.backing.network != net_obj:
                    nic.device.backing.network = net_obj
                    nic_change_detected = True
                if nic.device.backing.deviceName != network_name:
                    nic.device.backing.deviceName = network_name
                    nic_change_detected = True
            if nic_change_detected:
                
                
                
                if isinstance(self.cache.get_network(network_name), vim.OpaqueNetwork):
                    self.relospec.deviceChange.append(nic)
                else:
                    self.configspec.deviceChange.append(nic)
                self.change_detected = True
    def configure_vapp_properties(self, vm_obj):