That Han Solo movie does not look particularly good. The rumors were that the guy playing Han couldn't act, or that the role was out of his range, and while it doesn't seem he's Hayden Christensen levels bad, the lines they used of his in the trailer were not...great. Emilia Clarke clearly had a much better delivery in just one line. Harrison Ford's Han Solo wasn't a particularly vocally dynamic character either though. He was way more about the facial expressions.
What gives me a bit of confidence is that when Ron Howard took over, they didn't recast despite re-filming almost the entire movie. That would have been the time to do it.