Expired domain I bought and Redirected not passing metrics to my site.

I bought an expired domain with good backlinks a few weeks ago and redirected to my site. Nothing has changed ever since I redirected the domain. What do you think I should do? The expired domain is already showing on semrush but nothing has been passed to my site. No DA/PA increase, no backlinks passed on, no traffic, and no rank. What should I do?