Having trouble still with improving speed performance.

My page loading speed went up yesterday 85/100, then I must accidently changed something earlier and now my site is running slow again around 74/100.

Is it possible one of your support team could logon on my wordpress and help adjust my settings? I don't know what im doing wrong, an ive reviewed everything about JS and CSS minifying. Im just unaware of which settings needs to be adjusted.

I give permission to do so if possible.