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##### 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
```
disk_type = expected_disk_spec.get('type', '').lower()
                if disk_type == 'thin':
                    diskspec.device.backing.thinProvisioned = True
                elif disk_type == 'eagerzeroedthick':
                    diskspec.device.backing.eagerlyScrub = True
            if 'filename' in expected_disk_spec and expected_disk_spec['filename'] is not None:
                self.add_existing_vmdk(vm_obj, expected_disk_spec, diskspec, scsi_ctl)
                continue
            elif vm_obj is None or self.params['template']:
                
                
                if diskspec.device.backing.fileName == '':
                    diskspec.fileOperation = vim.vm.device.VirtualDeviceSpec.FileOperation.create
            
            if expected_disk_spec.get('datastore'):
                
                
                
                pass
            kb = self.get_configured_disk_size(expected_disk_spec)
            
            if kb < diskspec.device.capacityInKB:
                self.module.fail_json(
                    msg="Given disk size is smaller than found (%d < %d). Reducing disks is not allowed." %
                        (kb, diskspec.device.capacityInKB))
            if kb != diskspec.device.capacityInKB or disk_modified:
                diskspec.device.capacityInKB = kb
                self.configspec.deviceChange.append(diskspec)
                self.change_detected = True
    def select_host(self):