Orange LLU broadband, which was reasonable, is now outsourced (White Label BT Wholesale) just like the Post Office and Vodaphone. Reports so far from people who have been moved over are mixed but tending to poor.
Orange non-LLU has always been poor.
I suggest you tell us your exchange and what you do on the internet. Gaming, or heavy downloading, or simple browsing/shopping/email/banking etc.
It's quite possible your problem is at your place anyway. In which case you will find no improvement. Have you even tried a different router?
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost
. Internet connection -
IDNet Home Starter Fibre. Live BQM
"Where talent is a dwarf, self-esteem is a giant."
- Jean-Antoine Petit-Senn.