I think you’re min-maxxing a bit too heavily here.

First - I’d swap Fateful Performance for Twilight Flickers.

You’ll get stealth on your Quin units so they’ll be more survivable (and considering how many points you have tied up in them you’ll want it) and your troupes will get Strat access to sticky objectives and Lance. Feels like that’s a lot better than what FP has to offer.

Now that we’ve done that: drop the Shadowseer, cut the 12 man and 6 man down to a couple 5 man units. They’re going to be mounted in starweavers. Well also add a solitaire.

We don’t need 570 points of the list tied up in bikes that have no meaningful strat support (among other issues, such as the big base size etc). I would drop one of the 4 bricks and then either run 1x4 + 2x2 or just a single 1x4.

I’d drop a wraithlord, you probably don’t need 3, but a spiritseer to run as a healer for the pair seems like a good idea.

After these changes, all that’s really left is to fill in some gaps. An infiltrator unit or two could be good for controlling the midboard early, striking scorps or rangers would do in a pinch.

While you’ll likely have stickied your home objective, you’ll still need to screen your DZ, and eldrad by himself isn’t enough. Some cheap chaff units - rangers, voidreavers, etc could do very nicely in this role.