Okay so I've watched and analyzed both videos. I don't think the problem lies within your in game settings. Out of curiosity, does your PC experience any overheating issues? The reason I ask this question is because, when I use to run the game on my old laptop, I remember experiencing a problem similar to this. The constant freezes I experienced were caused due to my processor and GPU which put a strain on my system which did create the problem of overheating. My laptop could run other games fine but with DBO I would experience these random "spikes". To fix this problem, I was forced to change and upgrade my system.
In your case though it could be entirely different, however, it is hard for us to pinpoint what exactly the problem is. I assume you do have a stable internet connection. You seem to log into the game fine, and for the most part the game does run well.
If you have access to another system try to run the game on that and see how you go. If not, try to remove DBO and it's contents and unzip the folder again and be sure to place it on the desktop. Apart from this, I am out of suggestions on how to try solve this issue.
Thank you for recording the videos, hopefully if someone else who previously experienced this problem will view this thread and post a solution (if they know the exact cause of this).