I have the Galaxy Tab S 10.5 ... had some of the framerate issues at first but used some of the tips here and on the XDA Tab S forum and now it's rockin smooth and clean.
Rooted... cleaned out a buttload of bloatware... downgraded Google play services... select option to kill all backround processes in developer options... knock all animations down to "0" speed... make sure power saving mode is turned off... run connection on channel 20 and 4mbps... (I'm probly forgetting some stuff)
Also noticed if I run a mobile Hotspot on my phone and connect the tablet to it while running the app... the app runs much better/smoother.
Rooted... cleaned out a buttload of bloatware... downgraded Google play services... select option to kill all backround processes in developer options... knock all animations down to "0" speed... make sure power saving mode is turned off... run connection on channel 20 and 4mbps... (I'm probly forgetting some stuff)
Also noticed if I run a mobile Hotspot on my phone and connect the tablet to it while running the app... the app runs much better/smoother.