Yes, this feature is called Automatic alignment. You can use it when subscribing to the strategy or after. To find this option after subscribing to the strategy, go to Copy Trading => My Subscriptions and click the "Align Portfolio" button near the strategy.
However, kindly note that your exchange account should have a sufficient amount of funds for this operation. We recommend having at least 150 USDT on your exchange account.
Note that a small difference (1-2%) in percentages is normal.