Big performance difference between copy and copied strategy - 60d test w/ live account

Hello,

I've been testing cTrader Copy with small amounts and I am noticing that one of the strategies I am copying has a very different performance from my copy account.

Information:

• I've deposited $387 on 15/aug/2023, that is the only transaction for this strategy so far (not even fee withdrawals).
• The equity value of the copied strategy is around $200, so my equity is higher and I should not have any problems related to lot sizes.
• I checked some other strategies I am copying and they seem to be copying perfectly, so this seems to be specific of this strategy.
• I already had similar (big) problems with other strategies.

Here we can see the huge difference, this is my copy:

This is the copied strategy:

If we check the ROI chart of the original strategy, it never had a negative month and you can see that my current All Time ROI is -10%.

This makes me skeptical about the copy feature itself. Now I am testing with small values, but how can I escalate my investments if I am not sure that my copy actually reflects the original strategy? This totally breaks the point of searching for strategies with good historical performance.