I’ve just launched version 1.2.3 of Seedship which should fix the lag issue that people have been having. The update is live on the web and the Android store, and the iOS version is awaiting approval so it’ll probably be up tomorrow.
This update breaks save compatibility, so if you have a game in progress it’ll be deleted when you update, but this should only happen once. It also caps the number of high scores at 100 again, so any high scores over that will be deleted. (Sorry, but the high score data was a big factor causing the lag.)
Thank you to everyone who let me know about this issue and helped me track it down.