Code review comment for lp:~vanvugt/unity8/more-smooth-less-lag

first, do we have numbers to back up in both cases of app vertical scroll & indicator panel pull down? we need those

second, have we looked at all scenarios - app spread, dash swipe, scope scroll, browser specifically? we should

also, i wouldn't be opposed to disabling this while we also fix upstream. _if_ the data can be provided for all scenarios of concern.