Phone number length validation autocomplete rule

Summary:

Phone number length validation autocomplete rule

Content (please ensure you mask any confidential information):

We currently have an autocomplete rule to validate length of phone number (Phone number object) being entered for 5 countries. The rule has 5 if conditions with length conditions and error messages. As part of an initiative we are planning to extend this rule to include length validation to another 55 countries, this will require extending the same autocomplete with 55 if conditions.

Will this impact performance by any chance? What are the best practices for implementing rules with such high volume of conditions? Any design recommendations for this please?