Hi.,
We have disabled the total cache plugin , and installed / activated “Fast Velocity Minify” plugin , now theme speed score is – http://prntscr.com/mxaayg , http://prntscr.com/mxab27
And all working fine . But still if you want to increase the theme speed , then you have to contact your hosting team , because it takes long server response times – http://prntscr.com/mxac0k