Trying to get my hydraulic brake to “lock out” earlier

Not too sure of the term, but it feels like my rear brake is not as strong. It has more travel at the lever before it engages tightly compared to the front.

I’ve tried bleeding it fully.

Is it a function of the screw that sets how far the lever is from the bar?

Is it the type of oil? It was Shimano originally (these are mt200) and then I tried bleeding it with magura green.

Thank you