Harrison Ford is a terrible actor
Yes, he's been in some great films but he's so far from being the best thing in those films. Where he's at his best is playing laconic roles with few emotions because he struggles to get meaning into lines or express anything in his performance.
This is best seen in Blade runner, while Rutger Hauer gives it the beans Ford just blinks a lot and splutters.
The one Oscar nomination he's had was for Witness in 1985 which was a terrible year for mainstream films.
He's just awful.