Did you use the web installer? Also the Keyboard is just the stock AOSP keyboard. Don't feel the need to stick with it, Google left it languishing when they forked it and advanced it with GBoard.
Florisboard is great for swype/swipe.
Anysoft is another oft recommended Open Source KB as well as Openboard and Simple Keyboard (SimpleMobileTools has a suite of AOSP replacement apps)
You could also just choose to use GBoard with permissions like network revoked.