Curcy multi currency switcher isn’t switching currency on auto basis on desktop

Hi, I have started using curcy multi-currency switcher paid version yesterday but on the desktop, it’s still showing me the default currency which is in USD, and on mobile view it’s showing my regional currency which is in PKR. Though I have configured plugin’s settings quite cautiously but am unable to fix this issue. Kindly help on prompt basis I’ll be grateful.

I am sending you an explanatory video in which I have tried to elaborate the problem i am having on my website. kindly find the attachment and sort out this problem asap, I’ll be grateful.

Regards