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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
```
fullpath = self.folder
        elif self.folder.startswith('/vm/') or self.folder == '/vm':
            fullpath = "%s%s%s" % (dcpath, self.params['datacenter'], self.folder)
        elif self.folder.startswith('/'):
            fullpath = "%s%s/vm%s" % (dcpath, self.params['datacenter'], self.folder)
        else:
            fullpath = "%s%s/vm/%s" % (dcpath, self.params['datacenter'], self.folder)
        f_obj = self.content.searchIndex.FindByInventoryPath(fullpath)
        
        if f_obj is None:
            
            details = {
                'datacenter': datacenter.name,
                'datacenter_path': dcpath,
                'folder': self.folder,
                'full_search_path': fullpath,
            }
            self.module.fail_json(msg='No folder %s matched in the search path : %s' % (self.folder, fullpath),
                                  details=details)
        destfolder = f_obj
        if self.params['template']:
            vm_obj = self.get_vm_or_template(template_name=self.params['template'])
            if vm_obj is None:
                self.module.fail_json(msg="Could not find a template named %(template)s" % self.params)
        else:
            vm_obj = None
        
        resource_pool = self.get_resource_pool()
        
        if self.params['datastore']: