Endnote X9.3.3 running very slow on MBP 2020 M1 processor

I noticed that endnote has been running like a turtle in this version – or is it because it’s on M1 ARM processor of MBP? 

I’m not sure if the macOS Big Sur is culprit here or the processor itself. Is anyone encountering the issue as well? I had to pause when selecting multiple references.

What steps did you do to make it run faster?