The tweak is only affecting the animation speeds at which the iOS firmware carries out specific tasks, it will not speed up the loading of actual applications on your iDevice. Animations faster, but loading is the same time.
Let me try this again. Keep in mind the below is illustrative only.
Example Scenario 1 total time:
Unlock Animation Duration: 0.5 seconds
Load time of safari: 1 second
Animation duration to desktop: 0.5 seconds
Animation duration to open settings: 0.5 seconds
Load time of settings: 1 second
Animation to close to home: 0.5 seconds
Total time: 4 Seconds
Example Scenario 2 (Animation time reduced):
Unlock Animation: 0.1 seconds
Load time of safari: 1 second
Animation duration to desktop: 0.1 seconds
Animation to open settings: 0.1 seconds
Load time of settings: 1 second
Animation to close to home: 0.1 seconds
Total Time: 2.4 Seconds
So as mentioned SEVERAL times, yes the actual load times are not decreased. HOWEVER the total time is reduced since you aren't waiting for animations.
In my example, if you set your phone to 0.1x and I set mine to 10x, your phone would take 15-20 SECONDS to draw one animation. In this example, it would take 1minute 20 seconds to do what I did in 2.4 seconds.
So, hopefully you now understand. If one phone takes 2.4 seconds, and another takes 4 seconds, to do the same task:
THE ONE THAT TOOK 2.4 SECONDS IS FASTER. OMG SO HARD TO UNDERSTAND!!
Hope that helps.