This app is slow when using the SwiftKey keyboard. The worst area of lag is right after hitting send. If I try and send a message shortly after sending one before it, the app slows and I cannot type or do anything until it sends the message. Then after waiting for it to send I can being typing my next message. Another area where there is lag is in the notifications some kind of way. The app will not open and crash, or just have a black screen until I restart it. These problems do not occur with other keyboards, so please try and fix this! Thanks!