ALBANY, N.Y. — Most New Yorkers think Gov. Kathy Hochul could be doing a better job. The governor’s job performance rating plummeted over the past month as nearly 60% of registered voters reported not being happy with how Hochul is running the state, according to a new Siena College Research poll released on Monday. “Hochul’s overall job performance rating, the worst it’s ever been, is 21 points under water, after being 11 points under water last month and just two points under water at the start of the year,” Siena pollster Steven Greenberg said. Still, the survey found that as the governor g…