It appears you are associate with pixel window.
https://gtmetrix.com/reports/www.pixelwindow.com.mx/0pPSOaOG gave a grade of E for the site so I have to write that company has a lot of room for improvement.
Why this matters. If an advertising company doesn't care about their web site, it's not a stretch to see how much care they will put into your digital signage.
Think about your web site as a business card. You don't make them wait for the card and then give it to them with smudges and errors.
Do you think digital signage is good in advertising? Is it a virtual guarantee that the message will be seen by your target audience? Once you convey your message successfully, are the profit opportunities there? Is it worth investing?