i beat it on my phone using joiplay and honestly the only really unplayable part was the maze, the FPS dips to literally like 2 per second there as soon as you get the lantern while it was running smoothly prior to that part. But it seems that's getting looked at which is good.
I don't have the best mobile device for gaming tbf but considering the rest of the game was running smooth as butter up until that point I'd wager that still shouldn't be happening, even if the framerate loss is less severe on pc.
Joiplay users do have the alternative of just turning on noclip for that particular section though so it's not impossible to get the endings.
Idk, I just did. Wasn't having much trouble with it on android. First time around I got 27 chickens and second time I tried it on an older savefile I got 29.
If you're still struggling with it you could try to remember which gate a chicken spawned off then camp that one gate as soon as you catch it so you basically spawncamp them. It's a bit inconsistent but once you get it down once you should be able to reach the chicken threshold and during the last 10-15 seconds quickly run to the pot and spam interact as fast as you can to put them in.