Uber is cutting some employees during an "even more rigorous" set of ongoing performance reviews, the company confirmed to Insider on Tuesday.  "This year, we've taken an even more rigorous approach to our performance review process to ensure our talent bar remains very high," a representative for Uber said in a statement to Insider.  "We ended 2022 with our strongest quarter ever, with robust demand and record margins," Khosrowshahi said in a statement at the time