You do not need to take the pressure off of the perimeter drain tiles
at the footings. Those drain tiles are
the pressure relieving means.
All you need down there is to have the sump pump get rid of the water faster than the drain tiles collect the water.
Holes in the foundation wall, such as where concrete form ties used to be, can intercept water percolating down through the earth before that water reaches the drain tiles further on down. Filling these holes and cracks should eliminate overt leakage and water flowing down the inside wall.
Grading at least the first 5 feet of land to slope away from the house should reduce the overall amount of water percolating through the earth up against the foundation so as to improve things further.