Really appreciate your help Nicety to settle my problem on the IDST installation, and now it runs flawless without any lag or hang on the Q16.
After separate discussion (thru whatsapp) with Nicety and the IDST dealer, I thought the Q16 hardware setup should be strong enough to handle live TV, but the original MG launcher may be disturbing other IPTV apps, so eventually made a decision to "Factory Reset" the Q16, install a third party launcher (Nova) ,re-install the IDST app, and result was good, remote can select channels without hang, TV screen without lag.
initially we thought it could be due to the third party launcher, but after un-install the launcher, the IDST still running good under the original MG launcher, that means the "factory reset" has help settling the problem, probably clash of IDST vs some apps.
So far have already re-installed Popcorn and Showbox, all running good, will try to install more apps copied from Nicety's OneDrive to see if the problem would happen again, anyway, this save me from buying another box which has inferior specs than the Q16, thanks.
Hi plasticguy, it's blessed to see you this post about iDST problem on Q16, I am also facing exactly the same problem as you. Could you please list me the steps to rectify compatibility issue iDST on Q16, your Q16 is quad core right? Thanks