The tabs are positioned that way for the better expirience of mobile and desctop users. If you would like to have it in woocommerce default position please provide us with ftp credentials to your site. Or edit file wp-content/themes/xstore/woocommece/content-single-product.php. Please note that it is recommended to make all customiztions in Child theme to prevent overwriting main theme content. You may also change layout of sigle product page in theme-options->styling->single product page. You may find the settings to display tabs next to image. Please see it here: http://prntscr.com/fcf63c.