Advice for car covers needed

Hey everyone, I recently bought an outdoor car cover for my Porsche Cayman. I’ve noticed that water tends to pool on the roof area overnight.

The car is parked under a carport that’s open toward the northeast, so it’s not directly exposed to rain or heavy weather — just some humidity and condensation.

Should I be concerned about rust or mold forming underneath the cover? Is this normal for outdoor covers, or should I look for a different type (maybe something more breathable or with better tension)?

The car will be moved sometimes a week. The cover is necessary because there are cats always playing in this area at night and I do not want any scratches

Currently using this cover: https://amzn.eu/d/4j9GA0L

Appreciate any advice or experiences!