Resolution obviously plays a big part, but for me 1440 is fine.
3440x1440 (UWQHD) ~4.95MP 134.38%
3840x1600 ("UWQHD+") ~6.14MP 166.67%
3840x2160 (4K UHD) ~8.29MP 225%
You either get more screens, an ultrawide, or a 4K screen and try software scaling lower.