I have only one public IP, so I ProxyPass a Subdomain from my Webserver (Apache @ Ubuntu) to my NextCloud-Server (Apache @ Ubuntu). Everything works fine, except it's very slow (for example on my phone with the app). Directories take for ever to load, etc. When I forward the Port directly to the NextCloud-Server everything works way quicker!
I'm not really a Pro with Apache and Proxys, so do you have any Advice how/what I can do there? (disabling cache)?