My speed of my site is slow even with cloudflare

Hi, can anyone please help. I have been trying to solve this problem for months. My site www.in2town.co.uk is slow even with cloudflare and i do not understand why. I have been testing my site with the following page

with a speed test it shows the site is slower in the mobile version than the desktop and both are slow.

https://pagespeed.web.dev/analysis/https-www-in2town-co-uk-grantham-news-man-74-arrested-in-grantham/n10c6o0gz0?form_factor=desktop

can anyone please give me advice on how to solve this. not sure if i have the right setting with cloudflare and that could be the problem. any help would be great