Here in the UK I have worked out the optimum time for flying conditions. It’s between 4:30am and 9:00am. Between these times (My wife is threatening divorce) I can get into and play a substandard (blocky graphics etc) version of the sim. So far I am halfway through training. After this time the chances of you joining the 97% club and the Low Bandwidth Army (for reference, my home internet speed barely drops below 500/450mb) increases exponentially and all the loading problems ensue.
For the love of Zeus Asobo/Microsoft increase your server capacity, stop counting pennies and start counting digital pilots!