We have heard you and cut the price for memory in half, and you can now play each level 5 times before it is locked. The reason for the level locking is because the levels are all pretty different, and we didn't want people to just find the one really easy level and churn it. However, if it seems like 5 plays is still too low we will boost the number again.

This is live now on web and android, but for android you need to download the new apk.

We can't really recreate the performance problems you are talking about in chrome Arkinum, but it is a situation we are monitoring closely.

Your feedback is very important to us, and we are listening both here and in our discord channel.