Game breaking performance issues

Having any item sprite load up on the screen will cause a 30% to 40% FPS drop
Including opening the inventory and any container , crafting , smelting , trading , ..
The list goes on
The worst thing is that something as simple as having an item in the hotbar immediately drops the FPS from 60 to 40 ( watch the included video , and notice the FPS count).
On a normal survival world , the frame rate doesn't go above 25 , when it should be 40(that's the FPS I get with the HUD off).
I tested several Android phones with different specs ,with 1.14.60 and betas 1.15 betas and 1.16 betas and the issue only seems to get worst.
I asked around the community on Reddit and YouTube and I have encountered several cases of this bug.
The original public bug report is MCPE-72998 but it doesn't seem to get any attention so I thought to make a private one
Please, note that this bug has made Minecraft unplayable for many of your costumers , and it needs immediate attention by the Devs .
Thanks for reading