I am unable to see the '"Shipping speed'' option in my rates section. I am unable to match shipping speeds with the correct shipping rates or carriers. Does this have anything to do with the Shopify plan that I have selected? If not what is the solution
You have to chat with Shopify customer support and buy a carrier calculated shipping app feature with your plan.
As far as we can judge, there can be two situations in your case -
First is, if you are opting for manual shipping then there is no shipping speed option as everything needs to be manually set.
But if you are opting for a third-party carrier based on shipping rate and speed, you need to have either Shopify Advance or Shopify Plus plan.
If you have an active Shopify plan or a more basic plan then you need to switch to yearly billing to display the third-party carrier-based rate. You can also refer to this article -
Hope it helps.
In case you need any further help please drop a message to our Shopify Experts team.