How to calculate and compare PI performance on the eToro copy trader system?

I think your method is awesome. Also, look at the PI's graph; select traders with a steady increase, a sudden drop could be a sign of some erratic or poor trading activity. You can also check for the most copied traders, to do this, select people> any most popular searches>>clear all. You will see the most ranked PIs there.

I think you're on to something with your strategy.

One quick way to find out if a trader is good to copy or not would be by looking at their graph and monitoring the ups and downs as markets change over time.

The right side of the chart will show traders who have been steadily increasing without any sudden drops, while those that drop all together could be signs of erratic trading activity or poor trade choice.

Select 'people' from the menu bar to examine popular trades now, then click on "any most searched."

You'll see detailed information about these PIs, including how many people are following them, along with what's being said in social media posts (about them).