Lynnbrook users - are your fees higher than you expected?

I went from stripe with 2.9% straightforward flat fee per transaction to Lynnbrook which to me seems very convoluted. And that comes from someone working on acquirer side in merchant services for a major bank LOL. So I am not completely unfamiliar with credit card processing.
I got a statement for May and I saw this:

Discount Due 207.39
Fees Due 821.48
Amount Deducted 1,028.87
"Discount" is actually a fee.
All in all according my calculation, the fees (that include this discount that I am somehow obligated to pay came to over 3% per transaction. Second guessing my move from Stripe to Lynnbrook.