[tvon]

FWIW, the tab shows the loading progress in blue, so you're seeing the result of quick page loads. Not arguing your experience, just clarifying what is happening.

You might like the "Light" theme, which I think is available by default. That won't do any rounding for you, however.

[KozmoNau7]

No, it's actually a "this page has finished loading" animation. Personally I like it, but of course taste varies.