The term "pptp's VPN" could be a typo or miscommunication. If you are referring to a VPN service called PPTP, it might be a specific type or brand that offers VPN features. However, I don't have specific information about a "pptp's VPN."

1. Verify the VPN Service: Check if "pptp's VPN" is a legitimate service or a typo for another name.

2. Check Features: Determine if the VPN offers speed improvements, security features, or specific restrictions (like blocking presentations or other content).

3. Consider Customer Support: Look into whether the VPN has responsive customer support and helpful resources.

4. Read Reviews: Check online reviews to gauge the service's reputation, reliability, and user feedback.

5. Evaluate Restrictions: If the VPN is targeted at presentations, ensure it doesn't impose unnecessary restrictions on your usage.

6. Compare with Alternatives: If PPTP doesn't seem to meet your needs, compare it with other VPN services known for their features or user experience.

If you can provide more details, such as the type of content you're using the VPN for or specific concerns, I can offer more tailored advice.