You were not the only one, I had the same problem yesterday evening when I was switching between competitions in the Sports tab. I literally took minutes to load.
Whatever it was, it's all sorted now.

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Does anyone understand the logic behind "Over (2)" bets in football? If this means more than 2 goals, then what's the difference between "over 2" and "over 2.5"? And if it means 2 or more goals, then how's that different from "over 1.5"? The odds are different for each.

Is this some sort of bug, or am I missing something?