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Ergo rtx 970

I have a problem with Ergo setup under GTX 970
In June 2021 it was extracting 37 ~ 38 MH with the settings from the photo
Today it’s only 20. Can someone help me?
I tried nanominer (19mh) t-rex (23)
I was uploading old versions of Hive and drivers
But I can’t go back to do the test for nanominer 3.3.5 because the last one she sees is 3.3.8