Hello mrvivona, welcome to GPS Power.
1. I can not confirm the slowness you experience. Have you tried another PC or laptop or even another browser?
2. Until today, I did not experience this. For the first time today (only in the morning, West European time) I experienced these pop-unders too. I can assure you, they are NOT normal for this forum! Since the afternoon, I don't get these pop-unders anymore. Can you confirm?
3. We prefer to refrain from thanking posts in order to keep the threads free from clutter so they remain concise and easy to read. Gratitude can be expresed by using the button or the LIKE this post ↑ link instead.