Please Post Unity Android Build Settings

What are the best build settings to translate a very compressed and optimized LWRP build to an android device - I have a small scene with LOD and compressed textures Occlusion baked MIxed Lighting baked and real time hard shadows - only 4 shader variations that are all LWRP minimal particle effects -
However on my Galaxy Tab circa 2016 tab a 10.1
CPU Octa-core (4x1.6 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU Mali-T830 MP1

I can only get 6-8 frames a second and its barely playable with a tiny 50X50 level

Its a 3d scene with a player and 5 NPCS all LWRP shaders set on Lit or simple Lit - no post process effects.

Can some people list optimum android build settings for a simple 3d thirdperson RPG scene and WHY please?

Im not talking about level optimization - Im talking about build settings here - Ive built this 30 times and experimented with different settings and the one thing that seemed to make a difference is setting a fixed DPI but that only increased frame rate by 4 -6 frames a second.