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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
```
argument_spec = vmware_argument_spec()
    argument_spec.update(
        state=dict(type='str', default='present',
                   choices=['absent', 'poweredoff', 'poweredon', 'present', 'rebootguest', 'restarted', 'shutdownguest', 'suspended']),
        template=dict(type='str', aliases=['template_src']),
        is_template=dict(type='bool', default=False),
        annotation=dict(type='str', aliases=['notes']),
        customvalues=dict(type='list', default=[]),
        name=dict(type='str'),
        name_match=dict(type='str', choices=['first', 'last'], default='first'),
        uuid=dict(type='str'),
        use_instance_uuid=dict(type='bool', default=False),
        folder=dict(type='str'),
        guest_id=dict(type='str'),
        disk=dict(type='list', default=[]),
        cdrom=dict(type='dict', default={}),
        hardware=dict(type='dict', default={}),
        force=dict(type='bool', default=False),
        datacenter=dict(type='str', default='ha-datacenter'),
        esxi_hostname=dict(type='str'),
        cluster=dict(type='str'),
        wait_for_ip_address=dict(type='bool', default=False),
        state_change_timeout=dict(type='int', default=0),
        snapshot_src=dict(type='str'),
        linked_clone=dict(type='bool', default=False),
        networks=dict(type='list', default=[]),
        resource_pool=dict(type='str'),
        customization=dict(type='dict', default={}, no_log=True),