Pixelated N64, Glide64 doesn't launch games, Glide64-hires is missing

[LLLLllllLLLlll]

I'm running retropie on an Ubuntu install on an NUC8. Works great for most emulators, but n64 games running on lr-mupen64plus-next are often extremely pixelated - much more so than the games are on my N64. I can't find any clear guidance on how to resolve this issue, hoping someone can point me to the right place.

Relatedly, I'm unable to launch any N64 roms using any of the Glide options available from runcommand - mupen64plus-glide64, mupen64plus-GLideN64-LLE, and mupen64plus-GLideN64. It just pops back to emulationstation when trying to load roms. This is also failing to create HTC texture packs, following the guides here... tho they also reference mupen64plus-GlideN64-hires, which isn't an option for me.

I also had retropie installed on a pi4 last year, and I remember having the same issues (same glide64 options, none launched games either).

[dankcushions]

@llllllllllllll you can adjust the resolution factor in -next via https://retropie.org.uk/docs/RetroArch-Core-Options/#setting-core-options