System Advice required please

This is my current set up :

Intel NUC fanless with 2tb SSD

Singxer SU6 DDC

Denafrips Pontus II DAC

Willsenton R8 AMP

Proac DB1 and Rel subwoofer

think the NUC might be the weak link in the chain and considering options

have looked at SoTM sms200 ultra neo or Soundgenic 

price wise, looking to spend max £1500

would welcome any guidance from the collective

thanks all