Completion of the site on the 1C Bitrix

The website is made solution-Aspro.Max.
Site address: maski.markup.beget.tech/
The site has a selection of the city, and it is a very slow operation of the website prntscr.com/s523bx when you click on a city for a long time open pop-up window, then a long open area and the city. Need to speed it up. MB in General, to configure Bitrix optimally.

These cities created in the InfoBlock: prntscr.com/s525d1