InnoSwitch-EP sync-rectifier switching off too early

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I have an INN2605K with sync rectifier and the rectifier ist turned off too early as I compare it with the picture in the datasheet. I am using two SiR870ADP in parallel for rectification. The attached picture is measured over the fets. Do I have to worry or is the circuit working correctly? The Fets don't get very hot.

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We need a few more info for your inquiry. Is the converter in CCM or DCM? The controller terminates the SR FET drive earlier when operating in CCM. Looking at the Forward pin, at what voltage does the controller turn off the gate signal?