I can order a spring such as this one: https://www.rally-raidproducts.co.uk/yamaha-t7-tenere/yamaha-t7-tenere-shock-spring-uprated-stiffer-heavier.
But I don't have the tools or knowledge to install and tune to my weight. Will keep looking
I did play around with the settings and its alot better than what it came with from the shop. Just think I could do with a stiffer spring, especially with luggage or a passenger. Not a huge issue though