Agreed, I've the Grande FL head unit.
The HU is poor and the hardware used in it is outdated, it is running an extremely old android OS (4.4.2) and the processor used is a few years old as well (ARM Cortex-A7) with 1GB RAM (usable RAM is 833MB).
- HU lags and hangs on google maps.
- Has issues with Bluetooth and would randomly stop playing music after 20-30min and would only work after turning Bluetooth on and off.
- When the device is lagging, turning volume up/down from steering can take up to 30-40 seconds to take effect.
- Since, it has a very old android OS, a lot of apps are not compatible with the HU.
Even their vendor admits, it is a slow device so we have to deal with it and in one instance said, these issues are in Civic turbo as well (same vendor) like that justifies the issues in grande's HU.
I hope someone from IMC is reading this and gets the issues resolved because it looks like a dated hardware issue.