Yes, it definitely seems that something is wrong.
Recommendations:
- AquaMail settings -> network -> increase the "load when checking mail" to something like 64Kb under both WiFi and mobile (if applies)
- For the log, and access to the "memory card" (which is typically not a real memory card on tablets, but rather built-in memory), please install a file manager. One of my faves is ES Explorer, free in Google Play.