Ever since Akali's dash got changed into a strikethrough since 5.10, I started noticing that Akali takes longer to finish her dash (i.e. reach the end point) than compared to her old dash. This should not be the case since her missile speed did not get reduced since her release.

To confirm this, I timed the travel time when dashing to a target at maximum distance before 5.9 (old replays) and after 5.10 (live), and got the following results:

Before Patch 5.9 (Old dash with no strikethrough):

The old dash covers 800 units in 0.33 seconds. (800 range)

After Patch 5.10 (New dash with strikethrough):

The new dash covers 800 units in 0.42 seconds. (700 range + 100 strikethrough since Akali is dashing at max range)

If it takes 0.33s to cover 800 units with the old dash and the missile speed has not changed, then the new dash should take the same amount of time as well to cover the same distance.

However this is not the case, the new dash takes 0.42s to cover 800 units. This is approximately a 27% increase in dash travel time, thus confirming why Akali is dashing so slowly, not only visually, ever since 5.10.

With previous missile speed nerfs (Zed's W, Leblanc's W), this 'bug' is making Akali more clunky than needed and is perhaps the reason why Akali feels so bad to play right now when she should not be since her 5.2 nerfs. If her current dash was just as fast as her old one, she would be back to a fine spot.

I'm curious into how is this possible when the missile speed has not changed.

TLDR: Dash travel time got increased by approximately 27%, making her slower than intended. Riot ninjas > Kinkou ninjas.