Stratix 10 performance

Hi,

It's been some time we are working with Stratix 10 device. There is a design that we can't close timing on Stratix.

After comparing this design on other options (Virtex 7, Ultrascale+),

it seems that that Stratix 10 performance on this design is around Virtex 7, which is surprising. Ultrascale+ device is surpassing Stratix 10.

Is it something expected? Did anybody see better results? What switches should we pay attention to?

Thanks,

Vladimir.