OP, I noticed from another thread that you are using your NAS to store RAW photo files. Just to say that in all this discussion of networking speeds etc, it's worth making explicit that most people in your position working with RAW photo files / video and the like don't try to edit large media files directly on the NAS, for the networking reasons you're discovering.
A typical workflow would involve downloading an image(s) to be edited from the camera to a fast, local storage such as your internal NVME, or possibly a fast direct-connected external SSD, for example; then editing the image(s) locally; then finally uploading the completed edits back to the NAS.
IOW, the NAS is literally just being used for storage of RAW files & edited files, whilst fast solid state devices are used for the editing stages.
This isn't universal, and ofc there will be folk along to say how they have managed to cobble a system together that lets them edit directly on the NAS, etc. There will also be folk who have fast 10Gbit Macs, switches, cables and NAS Network cards which are fast enough to edit directly on the storage NAS. But for the majority of photogs I've worked with, most don't try and do everything directly from a 1Gbit NAS.
Apologies if this is obvious to you; just a different perspective to possible consider before you go down the rabbit hole of chasing 10Gbit networking. I've encountered lots of photogs who buy NASs expecting them to act like external SSDs and are then surprised to find that 1Gbit Network speeds are not comparable. But it's possible to work round the technical limitations with a suitable workflow.