If you are mining FLUX, you must use a different GPU CORE and MEM setting as when you mining ETH.
For FLUX mining try GPU CORE +200 MHz and MEM +0 MHz
Info:
https://www.hashrate.no/3070Oh I didn't know that ! I thought Afterburner settings worked for every situation. Thanks, now with Power limit 70%, Core +200 and Memory 0, I can reach about 60 Sol/s with 153W and 65°C with 40% fan speed !

Thank you very much for your help.
I don't know where you reside but I guess you are in some cool place compared to most of Europe,here we are experiencing the hottest day of the year so far so running at 40% fan speed is not an option,I get like 69 degree C at 76% fan speed here with while 38 degree C outside,so I advise you to increase a bit the fan speed as you know the cooler a card run the longer its lifespan while even if you happen to damage the fans (rarely has happened to me) you can always replace them for a low cost compared to replacing the card.Just an advice from a fellow miner.