Is there any action cost for a Kinetecist when using Metakinesis?

So, kinetecists can use metakinesis to affect their blasts as if by using an associated metamagic feat. Metamagic feats sometimes modify the action required to use the associated spell (i.e. standard action –> full round).

Does empower metakinesis, for example, actually modify the time it takes to use a kinetic blast? Or does it remain a standard action.