App is very slow – My Wonderful Days Journal Review

I’ve had a iPhone 6s Plus for the past 2 years and was always running the latest iOS. I just changed my phone to 8 plus running the latest iOS but the app is very slow and unresponsive. I’ve tried rebooting the phone, deleting the app and re-installing but sill doesn’t help. Please fix
Review by Zeuss_rs on My Wonderful Days Journal.