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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
```
datastore = None
        datastore_name = None
        if len(self.params['disk']) != 0:
            
            if 'autoselect_datastore' in self.params['disk'][0] and self.params['disk'][0]['autoselect_datastore']:
                datastores = self.cache.get_all_objs(self.content, [vim.Datastore])
                datastores = [x for x in datastores if self.cache.get_parent_datacenter(x).name == self.params['datacenter']]
                if datastores is None or len(datastores) == 0:
                    self.module.fail_json(msg="Unable to find a datastore list when autoselecting")
                datastore_freespace = 0
                for ds in datastores:
                    if not self.is_datastore_valid(datastore_obj=ds):
                        continue
                    if (ds.summary.freeSpace > datastore_freespace) or (ds.summary.freeSpace == datastore_freespace and not datastore):
                        
                        if 'datastore' in self.params['disk'][0] and \
                                isinstance(self.params['disk'][0]['datastore'], str) and \
                                ds.name.find(self.params['disk'][0]['datastore']) < 0:
                            continue
                        datastore = ds
                        datastore_name = datastore.name
                        datastore_freespace = ds.summary.freeSpace
            elif 'datastore' in self.params['disk'][0]:
                datastore_name = self.params['disk'][0]['datastore']