Loyalty plus gives you a variable option to integrate with your store and account creation is one of them. Here is how you can do it-
Step 1: Click on “Activity rule” on loyalty dashboard.

Step 2: Please enable the “Create an Account” activity to create a rule from the Activity Rules bar.

Step 3: Create Rules: Set points to give your customers when they create an account.
Edit Display Notification and panel text content > Then update the settings.

Now after enabling this feature, Your customer will receive points when they create an account on your store.