I tried on 2miners , on a 12x3080 rig, Hive OS cuda 11.5 driver 495.46 cuda 8 xint 3108 , I have 1321mh in the miner window. Average per pool per day 1.24 ghs. It works well for the first hour, then it starts to fall behind. I can put it for you again for a test for a day, so that you can be convinced of this yourself. Maby in hive i must use 11.4 cuda , i dont know, but it not work ....
Try v1.42 cuda v11.4 build. 11.5 might have issues. As reported in the previous post. 3108 might not be the optimal config for your rig. This setting works good on 1 rtx 3090.
Cuda 11.4 in the miner immediately increase in hashrate
Cuda 11.5 RTX 3080 102.5mh
Cuda 11.4 RTX 3080 110.5mh
Apparently the libraries and compatibility of the miner in HIVE OS with cuda 11.5 are at a low level and the miner does not work correctly.