It has more to do with business activities than the amounts. While transactions in the 500,000+ EUR range will trigger some forms of controls with any financial institution, what matters more are purpose of payment, origin of funds, destination of funds, relationship between senders and receivers, currencies, frequency of transactions, and so on. All these data points together form a risk profile of the transaction and the account.
That is to say, if your business is clean and within Wise's acceptable use policy and assuming that you can provide supporting documentation for transactions, it shouldn't be a problem.
They seem to be very responsive if some has questions in regards to they KYC policy, documents policy and transfers in and out and more important it looks like they really want to help you avoid troubles. It's so far one of the best online services I have used.