Yes, it is running fast but, why do you wan to detect is as you can see last 2 years there are zero orphan blocks mined. You can check all the details of the orphan block in the link below:
https://www.blockchain.com/charts/n-orphaned-blocks?timespan=all

Also, here are all the blocks that are "mined but ultimately not attached to the main Bitcoin blockchain".
https://api.blockchain.info/charts/n-orphaned-blocks?timespan=all&scale=1&format=json