There are lot of papers available online to implement Grid on AWS. Few links below.
See if this paper answers your questions. https://www.sas.com/content/dam/SAS/support/en/sas-global-forum-proceedings/2020/4312-2020.pdf
Paper shared by @MargaretC talks about considerations when you provision cloud infra to deploy SAS. You can review it to understand the performance impacts and choose the best option suited for you to provision infra in cloud where as the link shared by me is a quick-start to get SAS/Grid deployed up and running quickly on AWS.
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.
SAS technical trainer Erin Winters shows you how to explore assets, create new data discovery agents, schedule data discovery agents, and much more.
Find more tutorials on the SAS Users YouTube channel.