Timed out again while actively playing

Fix whatever is wrong with this pathetic netcode or anticheat or whatever excuse you want to latch on to this time.

8Gb fibre, on a 10Gb LAN, on a very capable machine, and no issues with any other game.

Once is an anomaly, twice a coincidence, three times a pattern. I've been through troubleshooting on my end to prove it's nothing I can do. Now you need to actually do some work. Find it and fix it.