Auto Geolocation is not working properly

I have a problem using the plugin in my store.

Auto Geolocation is not working properly. The currency shown to the user is always random. An access from Chile shows the currency of Mexico, access in Argentina shows the currency of Chile, sometimes it shows right.

I did some simulations with VPN and also observed the users’ access through the screen recording of the hotjar.

I use the WPEngine server with cache and Optimize plugin. I looked around and saw that apparently there is some incompatibility with Optimize, but I tried to disable it, as well as the WPEngine cache, and the problem continued.

Please, can you help me.