Text element problem about batching

i need an advice or solution about some performance issues.I wrote to another topic
as an answer but there were no responses.So i try again:)

Problem : I need 300-500 text element in the scene at the same time .The app needs to run also on mobile.So these text elements need to share same mesh.Becouse 300-500 drawcalls are too much.

In early versions of playcanvas engine , there was batching element option.But now there is no such thing.
So what are my options to achive this?Any advice would be appriciated…