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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
```
- 'One of the below parameters is required per entry:'
    - ' - C(name) (string): Name of the portgroup or distributed virtual portgroup for this interface.
          When specifying distributed virtual portgroup make sure given C(esxi_hostname) or C(cluster) is associated with it.'
    - ' - C(vlan) (integer): VLAN number for this interface.'
    - 'Optional parameters per entry (used for virtual hardware):'
    - ' - C(device_type) (string): Virtual network device (one of C(e1000), C(e1000e), C(pcnet32), C(vmxnet2), C(vmxnet3) (default), C(sriov)).'
    - ' - C(mac) (string): Customize MAC address.'
    - ' - C(dvswitch_name) (string): Name of the distributed vSwitch.
          This value is required if multiple distributed portgroups exists with the same name. version_added 2.7'
    - ' - C(start_connected) (bool): Indicates that virtual network adapter starts with associated virtual machine powers on. version_added: 2.5'
    - 'Optional parameters per entry (used for OS customization):'
    - ' - C(type) (string): Type of IP assignment (either C(dhcp) or C(static)). C(dhcp) is default.'
    - ' - C(ip) (string): Static IP address (implies C(type: static)).'
    - ' - C(netmask) (string): Static netmask required for C(ip).'
    - ' - C(gateway) (string): Static gateway.'
    - ' - C(dns_servers) (string): DNS servers for this network interface (Windows).'
    - ' - C(domain) (string): Domain name for this network interface (Windows).'
    - ' - C(wake_on_lan) (bool): Indicates if wake-on-LAN is enabled on this virtual network adapter. version_added: 2.5'
    - ' - C(allow_guest_control) (bool): Enables guest control over whether the connectable device is connected. version_added: 2.5'
    version_added: '2.3'
  customization:
    description:
    - Parameters for OS customization when cloning from the template or the virtual machine, or apply to the existing virtual machine directly.
    - Not all operating systems are supported for customization with respective vCenter version,
      please check VMware documentation for respective OS customization.
    - For supported customization operating system matrix, (see U(http://partnerweb.vmware.com/programs/guestOS/guest-os-customization-matrix.pdf))
    - All parameters and VMware object names are case sensitive.
    - Linux based OSes requires Perl package to be installed for OS customizations.
    - 'Common parameters (Linux/Windows):'
    - ' - C(existing_vm) (bool): If set to C(True), do OS customization on the specified virtual machine directly.