Unfortunately, the tips didn't change anything ...
I am using the latest version of Lightroom 4.3. Below, I paste a print screen with my MacBook data and a screen of the Creative Cloud panel. Please pay attention to the blue arrows on the top bar and the small circle on the cloud in the top right corner.
i don't see any arrows, but regardless, what's the question? your sync taking a long time (which is expected given how much bandwidth is required to sync)?