4x and 8x SPEED Doesn’t work – Video Speed Editor - Slow and Fast motion effects for multiple parts of your videos Review

I paid $2.99 to unlock all speeds . And the only one that works to speed up a little is 2x it’s faster than the other ones! The other higher speeds freeze up and are slow! I need a refund seriously . . I wanted to give this a chance but it’s not even good .
Review by YesReynaga on Video Speed Editor - Slow and Fast motion effects for multiple parts of your videos.