I just looked at my cache folder android/data/Tapatalk.../cache. It was 365mb! I deleted the folder and Tapatalk looks and feels the same or faster, and now that folder is 340kb. Tapatalk should have an auto cache clear on exit...
Anyway, you might check your app/Tapatalk cache if you haven't in a while. Gained a lot of disk space!
Sent from my Nexus 5
2012 Nexus 7
4.4.4 Purity, M-Kernel, Banks Minimal Gapps
2013 Nexus 5
4.4.4 Purity, Code Blue Kernel, Banks Minimal Gapps