I recently ran into this problem and solved it (with the help of this question / answer), overriding the following styles:
.flex-direction-nav a {
...
-webkit-transition: all .3s ease;
-moz-transition: all .3s ease;
transition: all .3s ease;
}
with these styles in my own css:
.flexslider .flex-direction-nav a.flex-prev,
.flexslider .flex-direction-nav a.flex-next {
...
-moz-transition: none;
-webkit-transition: none;
transition: none;
}
I am a big fan of not modifying the source code provided by the library, so I think this is a better and more complete solution.
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