Ian doesn't have any storylines with Ed and Stan, and his interaction with Perry is part of the main storyline, so I'm not sure what you're expecting Eva to cut. Ian could have a friendship path with Axel, which would work well with a chad Ian in need of a new circle of bro friends, including Jeremy, after he potentially leaves Wade and Perry behind (like if/when they discover he's been fucking Cindy and/or Emma), so cutting it wouldn't be a good idea.
As for Lena, Holly is one of her romance routes, and one quite a few people like, so it's a terrible idea to cut that. Emma will probably play a part in her Seymour route (maybe adding some drama in her friendship with Emma if Lena gets close to Seymour, or as support if Lena turns against Seymour at a point when he's got something on Lena), so no, Emma works well with Lena. Allison has nothing to do with Lena's storyline so far as I can recall, so that doesn't even apply.
None of those suggestions would be "better for the game" as they're routes that either don't even exist, or they have an actual part to play in fleshing out the story in some way.
Also, if you actually want a good, well-made game then you'll be willing to wait for the time it takes to create that, like many of us are. If you're not, then accept that it's going to happen regardless of what you want anyway.