Hello, and thank you in advance for your response and help.
Our store is very large, and we have a lot of products.
We have approximately 10,000 products, and our main goal is to keep the cache lifetime at least 15 days.
Because 1600 seconds is very insufficient for us, and our resources are limited, when the cache system starts rebuilding the cache every 1600 seconds, we constantly need to create different cache files for mobile and PC.
This means a large number of requests for many pages. What we actually need is to somehow extend the timeout period for the dynamic CSS files supported by the theme.
This might be a possible solution.
