I just installed a new trigger from Midway.
They have several on sale now.
Rem triggers are known for being harsh and gritty. It is usually cheaper to replace them than to have a gunsmith try to improve them; many times it can't be properly done. Aftermarket triggers are the best solution, you get exactly what you need and easy adjustability.
My Basix trigger cost $100 and took 10 minutes to install.