Dear Pandada8, dear Maintainers,
after apply such change to package source and rebuild, ram consumption drop from 800MB+ to 40MB.
please, do not forget to preserve credits for the original workaround description [1]. It took me much time for experiments in order to get to this simple workaround.
Thanks, Andrey[1] https://github.com/transmission/transmission/issues/313#issuecomment-332543087