I have the same problem and I would rather not deactivate plugins as this will have an immediate impact on my earnings. I might mirror my page eventually to have a local test environment, but I don’t have time for this at the moment.

I use the Divi theme, Learndash, Woocommerce, Divi Bodycommerce, Ninjaforms, PaidMembership Pro, WP Fastest Cache, Borlabs Cookies.