Very slow boot, network not found on startup

The boot time of my device has increased - and there is a problem connecting to the network on boot.
After the boot, i can navigaste and find the files on the NAS

Any advise?

https://paste.osmc.tv/iporesizuq

Seems the device only get an IP address via DHCP after 2 minutes. What is your DHCP router?
Can you try a static IP for testing if booting then is fast?