Just crashed again, its a 100% repeatable problem for me.
after playing for an hour or so, zooming in on the f10 map causes the game to slow down to the point where it stops being responsive.
In this case I clicked on another unit on the f10 map and the game slowed to the point where it became unresponsive. I've tried the TdrDelay fix and that managed to let the game recover after 15/20 seconds of being unresponsive (before the fix SteamVR would die before DCS came back) and then just to test, I zoomed in on the F10 map and then DCS became unresponsive again.
I check my DCS logs (attached), but there's no DCS crash so no logs of use.
The issue is performance is currently borked - zooming in on a busy server causes DCS to "slow down" to the point where windows reports its unresponsive, at which point steamVR will sometimes die.
dcs.log