Can I disable hover effect by using: buttonMarkup.hoverDelay = 0

Can I disable hover effect by using: buttonMarkup.hoverDelay = 0

In order to optimize user experince/response time I'm wondering if setting the global setting buttonMarkup.hoverDelay = 0 will result in that JQM doesn't apply the hover css to elements?
 
 
If it is not the case, why is that?