Found it, the link is https://pardooo.com/blog/.
I just ran a speed test from websiteoptimization.com and here are your two main issues:
TOTAL_SIZE – Caution. The total size of this page is 104978 bytes, which will load in over 20 seconds on a 56Kbps modem – or 22.32 seconds on a 56Kbps modem. Consider reducing total page size to less than 100K to achieve sub 20 second response times on 56K connections. Be sure to provide feedback for pages over 100K by layering your design to display useful content within the first two seconds.
IMAGES_SIZE – Caution. The total size of all your images is 97710 bytes, which exceeds 50K. Consider optimizing and creatively cropping your images, and combining them where appropriate. Even better, replace graphic text and form controls with styled text to eliminate unnecessary HTTP requests. Ideally each image should be less than 1160 bytes, to easily fit into one TCP-IP packet.