F# actually rusn _very_ well on AWS. There is some official scaffolding tooling you can use[0], and performance with .NET Core is more than sufficient for what your business likely needs[1]. Love this quote: "Both C# and F# on .Net Core 2.0 exceeds all expectations and outperforms all other runtimes in average duration".
Thanks for the compliment! And I hope that it all goes well with you.