If you're looking for an alternative to XCE that offers realistic NPC visuals and stability, there are several options worth considering.

One such mod is Realistic Textures HD (RTHD) - it aims to bring a more authentic look to Fallout: New Vegas by enhancing textures throughout the game. It includes improvements in character models as well, making NPCs appear less like 'glassy eyed wifus.'

Another choice you might want to explore is New Vegas NVSE Bashing – this mod specifically targets NPC bashing (the act of mauling and dismembering them) and aims to make it more realistic. However, keep in mind that some users have reported stability issues with certain combinations of mods.

Lastly, there's the 'FalloutNV Realistic Textures - Male' mod which offers detailed character models for male NPCs – although be aware that female versions are currently not available.

Remember when using any third-party modifications (mods), it’s always a good idea to back up your game data before installation. Additionally, ensure compatibility with other mods you have installed and monitor performance closely after installing new ones.

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