Problem with self copying between my accounts

Good morning, I'm Italian, sorry for the imperfect English. I can't solve a quite important problem... I have several Live accounts for capital management. I have an account of only €100 to which I connected a much larger account and put it in copytrading. I just disconnected it because it didn't reflect the real percentage... There must be some setting that limits compliance with the 1:1 percentage that is reflected in the exact same way... What could it depend on? Please help me, I can't operate as I would like in this way... If you can help me I can reconnect the large account to the smaller one again... It's really important. I always use only cTrader desktop application.