The google analytics statistics can take 2 days before being updated with the data sent by the plugin. So that might explain the problem.
Also, the google analytics code is only added after the order is redirected to your website after the payment. It's not added on all the pages.
The google analytics plugin in HikaShop is to handle the statistics on your sales, not for your website traffic. If you want to have statistics on that, you should use one of the numerous joomla plugins available for that.