This is a known issue for devices whose display's pixel ratio is not set to 1. This has been addressed in v.1.4.31 but the web demo is still at v.1.4.3. 
I have been occupied with a lot of things so I haven't been able to update my plugins as much, but I am still active on discord to answer questions. Next major update is set to release in the next 1-2 months.