Have you tried ufw reject https instead of just allowing the default deny rule to take place on that port?
I tried that and it works perfectly! Thank you so much!
You're welcome, it short circuits out the process and immediately says "No connection" instead of waiting for a DROP to timeout.
I did open 443/tcp that did solve the issue for me with slow loading on some pages 
So I have open port 80/tcp 443/tcp 53/tcp and udp in ufw is it any more ports that I need to open?
Those should be all the ports required.
I know that this is an old thread but this just bit me this morning. Here's a workaround script while someone smarter fixes it properly. I have this run in my cron hourly.
I re-wrote @linuxpng's script to work with the current RPI's ifconfig output, modernized it a bit, and hosted it here:
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How do I run the script if my Pi-Hole is running in docker?