In version 2.13.3 of the plugin you can now disable live polling altogether if you wish. Just go to the frontend settings and set the two polling intervals to zero.
Any remaining performance issues that you may face in the frontend are probably due to AJAX calls on the main thread as discussed above. This will be resolved in a later release.
Additionally, if you do not need the [wallets_move] UI and its related functionality, you may disable it from the “Capabilities” admin screen. This will disable the get_users_info JSON call, which normally sends a list of users to the client for the purposes of the user dropdown. This will be resolved more permanently in a later version.
kind regards