Ironically, Computer Modern is terrible to read on computer displays. It was designed for ink and toner bleed, and looks great when printed on 1970s-era Xerox printers [1], but it's far too thin for digital rendering.
I might suggest Bitstream Charter for a well-designed and readable analogue to CMR for digital use.
That is the Type 1 realization of it, the original Metafont outputs bitmaps tailored for the target device. Unfortunately no widely font rendering library supports Metafont directly, so they are often converted to Type 1 or OpenType and loose that capability.
I might suggest Bitstream Charter for a well-designed and readable analogue to CMR for digital use.
[1] https://www.typografie.info/3/topic/22238-ist-die-computer-m... (German language)