I have a few issues when I'm playing on my Samsung Galaxy Tab E though I use it very rarely. I'm using the OpenGL ES 2 GKGL driver.

My background is black and weapons fire is invisible. (Set to High and Medium respectively)
On occasion, ship models are also black.
There are also some things missing, like the undocking port shield.

Device Specs:
System chip: Qualcomm Snapdragon 410 8916
Processor: Quad-core, 1300 MHz, ARM Cortex-A53, 64-bit
GPU: Adreno 306
RAM: 1.5GB
Internal storage: 8GB
Device type: Tablet
OS: Android (4.4)

Has this been improved at all, by recent patches?

We don't have any hardware that replicates your problem, which makes fixing it more challenging.