@JonnyEngleby918: Sorry to hear that you're experiencing this issue with your Note 9. Is the issue occurring with all contacts, or just certain ones. Have you contacted your network provider directly to see if there are any restrictions to the service in your area?
Regarding the performance issues, please tap the Recent Apps button in the Navigation Bar, and close any apps when not in use. Now, go to Settings > Device Care > Memory, and hit 'Clean Now' to see if this helps, then press the Volume Down and Power keys together for around 10 seconds until the phone restarts. Do you notice an improvement to the phones performance following these steps?