GMap Home Page goes slowly uploading listing

Hi,
I have Gmap Home page in the following page:
http://www.infocity.website/location
I have differents CPT like:
LUGARES DE INTERES (with 12 listings)
ACTIVIDADES (with no listings)
RESTAURANTES AND BARES (with aproximatelly 20.000 listings)
and so on…
Default CPT is:
LUGARES DE INTERES (with 12 listings)
When I go to:
http://www.infocity.website/location
page is uploaded in a few seconds, and also “GMap Home Page” WIDGET. It is good.
If I do click in horitzontal menú, (into “GMap Home Page” WIDGET) to others CPT, listing will be uploaded also in a few seconds.
Off course, RESTAURANTES AND BARES (with aproximatelly 20.000 listings) is uploaded in more seconds that the others CPT, but no more than 5, 7 seconds. It is good because they are a lot of listings.
The problem is when I am in RESTAURANTES AND BARES, and I do click in other CPT, like:
LUGARES DE INTERES (with 12 listings) or
ACTIVIDADES (with no listings)
It can lost 3 minuts (depending fast of internet and computer processor…)
But it is a very large times…
It is strange this situation, because RESTAURANTES AND BARES (with a lot of listing) is uploaded very fast. The problem is when I go from RESTAURANTES AND BARES to other CPT.
I have test it with another THEME, and also using “GMap Home Page” WIDGET in other pages, like HOME PAGE. The error continue to be showed. So I think the error is in the widget.

I hope your reply.
Thanks for your support.