Hello,
1) http://prntscr.com/es0cvd I don’t see problem with shop page http://primejuicer.com/shop/
2) We provide support for the XStore theme using this chat. If you check it you’ll see that this is XStore support http://prntscr.com/es0dp1
3) Is it problem for you to use fee plugin to add currency switcher?
Regards