Change the speed of a vidéo / Refresh Infuse

I propose two suggestions.

Sugest 1 - Have the possibility to change the speed of a vidéo (like VLC) because I use Infuse to learn english (Yes I know I still have a lot of work). I look some series with sustitle and that's more easy to read the video slower.

Sugest 2 - To have the possibly to refresh Infuse because if you change the name of a file Infuse can't see it. I use a NAS server and when I add a movie or change the name of a movie Infuse can't see that immediately. I have to wait several hours. It's intolerable.

Regards