Hub got unstable after integrating HUE via Matter

I integrated my Philips HUE setup (approx 40 lights and 10 accessories) into SMartThings via Matter. I don’t know if that’s the cause, but my hub frequently reboots now and aumations are very slow to execute.

At the moment I didn’t remove the HUE light integrated via Cloud.

I have about 100 z-wave / zigbee / thread devices, 60 Matter devices, and 80 device integrated via cloud services.

Any advice?