Unfortunately, there is no priority on the server the game prioritises when searching. The last 5 games I have been in have 200 ping. This is from finding a match after only 4/5 seconds of searching for a game. This is not making the game enjoyable and I want to be able to have a fair opinion after the Insider ends. I would much prefer to search for 2 minutes to get a local/stable connection.
My connection is perfectly fine and I get great ping on any other game right now as I type this. Yesterday I was 50/50 on getting a good ping game on Insider.
In MCC, you can set the regions you want to search for a game in so you are guaranteed to be below a certain ping from your selection.
I hope this is implemented in the final product.