Want to highlight a helpful answer? Upvote!

Did someone help you, or did an answer or User Tip resolve your issue? Upvote by selecting the upvote arrow. Your feedback helps others! Learn more about when to upvote >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Scrolling acceleration in Mountain Lion?

When skimming through long documents in previous versios of OS X, I would continually scroll small, quick intervals on my trackpad. In Mountain Lion, it seems Apple has added an acceleration to this scrolling behavior, a bit similar to trackpad cursor behavior. Now, when you continually scroll small bits in rapid succession, it accelerates until your scrolling skips dosens of pages at once.


Is there any way to disable this behavior? (Although I'm guessing not)

Posted on Jul 26, 2012 8:58 AM

Reply
34 replies

Jul 28, 2012 4:59 AM in response to Joh T

You can pump up your scroll speed so it is easier to sroll up and down a page (with inertia also turned on for a flick scroll, similar to iOS) :


User uploaded file

This is also in System Preferences>accessibility>mouse and trackpad>trackpad options or mouse options. after going there this screen should pop up.


Other then these two methods, there is no way to set a momentous scrolling that increases with consecutive touches.

Jul 28, 2012 5:06 AM in response to TheSmokeMonster

@TheSmokeMonster


...But that just makes it less precise and completely out of control. I'm not complaining about the scrolling speed. Low scrolling speed is accurate, feels "natural" (i.e. feels like it's actually following your fingers) and you can easily speed up by swiping faster.


I can control my own speed by swiping slower or faster. Automatic scroll acceleration is completely unnecessary.


You seem to have the whole question backwards. People are looking to disable the acceleration that takes place. Not scroll faster. You can scroll 5 pages in one flick on the lowest scroll speed. That's easily fast enough for most normal persons.

Jul 28, 2012 2:27 PM in response to Joh T

This is driving me crazy, when reading long documents I slowly scroll down with my magic mouse using many small scroll movements. With accelerated scrolling these act cumulitively and suddenly my page starts scrollin go out of control unless I conciously stop scrolling for over a second. I don't understand why they bothered, I never had a problem scrolling long documents fast in Lion but now I have problems scrolling them slowly.


Really wish Apple would give us hidden options to revert to the old behaviour when they make changes like this.


They changed the mouse movement acceleration curve from SL to Lion and that still drives me crazy with no way to revert to the previous.

Aug 1, 2012 4:18 PM in response to Joh T

I agree with Joh T and others.The accelerated scrolling is a problem, and needs a simple user tuning "on-off" switch in the system preferences.


The idea behind it:

"Instead of having to monotonously scroll up or down for an extended period of time, while trying to reach either end of a page, we will impliment a feature which will multiply the scrolling speed after the third consecutive scrolling."


A real use case:

"After only three normal/consecutive scrolls down or up a page, the scrolling accelerates to an uncontrollably fast speed. Therefore, when I want to keep a steady pace while scrolling down or up a page (either looking at galleries of pictures or reading quickly), I have to count when I scroll; 1..2..3—and then stop scrolling for a short period, then continue scrolling."


It is surprisingly disturbing to user flow; but it's a simple fix which will come when enough people react.

Hope you are aware Apple.

Scrolling acceleration in Mountain Lion?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.