The release is available now, and you can change the speed with the following script in the body-end.html
file:
<script>
WALK.GAZE_POINTER_SHOW_LOADING_AFTER_S = 2.5;
WALK.GAZE_POINTER_ACTIVATE_AFTER_S = 4.5;
</script>
The second time must be larger then the first one, so for example, to show the circle one second after a user starts looking at a point and activate the teleport half a second later, use the following:
<script>
WALK.GAZE_POINTER_SHOW_LOADING_AFTER_S = 1.0;
WALK.GAZE_POINTER_ACTIVATE_AFTER_S = 1.5;
</script>