Self-hosted server ( load test ) on submission

Hello Team

Need help in self-hosted kobo, We are doing a load test on AWS M5 large


The problem is CPU of the server is going only till 60% for 1000 users and requests are failing

So please suggest on Production
1)Instance Size
2)Memory (GiB)

Hello Team

Any help here

@Kal_Lam can you please help on this info