Screenshare framerate in tile view

Running smooth 30fps screen share with pinned participant.
However, once I enable tile view fps is dropped to 5 or even lower. This isn’t happening in Firefox though.
Been trying to figure out how to configure this or change behaviour in source code but no luck so far.

Any insights would be awesome.

Kind of same thing happening on presenter mode (desktop + camera). I guess bitrate or framerate is getting limited to some specific number that is not defined in any of the configs. Is that correct?