Welcome to the Airtable community!
Are you referring the the 4 year old information in this thread?
You might be temporarily able to use a higher rate limit per this post from about a year ago.
Could you share a little more about how you are accessing the Standard REST API?
Were all of your requests from the same API key to the same base from the same IP address?
Were you using a library to access the API, that has built in logic to either space out requests or to retry requests?
Were you possibly using a different API, such as the Scripting API? The Scripting API has different rate limits.