slow response time when calling Dropbox.Api (6.37.0) with expired access token

Thanks for the report. It looks like the .NET SDK is unnecessarily retrying (repeatedly, with a backoff) on 'expired_access_token' failures. I'll ask the team to update it to skip the automatic retries on that kind of failure.

To work around this, you can make a DropboxClientConfig with maxRetriesOnError set to 0, and pass that to DropboxClient. That would prevent the automatic retries and eliminate the extra latency in this case. It would also prevent the automatic retries in cases where they may be useful though, so if you want to lower that extra latency without completely disabling automatic retries, you can set it to a number between 0 and 4 (since 4 is the default).