Description:
In EventManager.onRenderAfterWorld(), the code iterates over world.loadedTileEntityList every frame and calls TileEntityRendererDispatcher.instance.getRenderer(tile) on each TileEntity, solely to check if the renderer implements the ITileEntitySpecialRendererLater interface.
The actual late-render functionality is only needed for TileEntityAlchemyTablet. Since it is the sole implementor, a simple instanceof check can be used directly instead of retrieving the renderer. Tested in a large modpack, a profiler shows this method alone takes 5.18% of frame time, with ~4.66% spent inside getRenderer and its injected lookups.

Description:
In EventManager.onRenderAfterWorld(), the code iterates over world.loadedTileEntityList every frame and calls TileEntityRendererDispatcher.instance.getRenderer(tile) on each TileEntity, solely to check if the renderer implements the ITileEntitySpecialRendererLater interface.
The actual late-render functionality is only needed for TileEntityAlchemyTablet. Since it is the sole implementor, a simple instanceof check can be used directly instead of retrieving the renderer. Tested in a large modpack, a profiler shows this method alone takes 5.18% of frame time, with ~4.66% spent inside getRenderer and its injected lookups.