Hello Avro,
We'll clarify this for you.
We'd like to inform you that the performance issues of your computer can not be resolved using your AVG Internet Security subscription.
We do have a designated product called the AVG TuneUp which is an optimization tool that helps us to enhance your computer's performance & it isn't included in AVG Internet Security.
Whereas, the AVG Internet Security is a protection program that helps us to protect your computer against emerging threats, malwares & hackers.
If you're interested, you can purchase the AVG TuneUp subscription. Else, you can ignore the subscription payment screen.
Please write back to us if you have further queries.