This is huge question. First I have no idea what your training routine or diet is. You could be overworking or underworking and possibly to nutritionally doing all you can. I can say that you can not get too much stronger without getting bigger. Above all be patient.
Recuperation is the name of the game.
This type of training allows recuperation for heavy power training. You still should incorporate my maxim of changing rep schemes every 4 weeks. Be brave and train less. It's harder than you think. Many lifter's egos are not satisfied unless they are spilling their guts 2-3 times weekly.