So I lift heavy, around 80-90 percent of my max. I do bench press, lat pull downs and military press this way. I follow a 5x5 set/rep scheme but it seems that by the time I get on my third rep, it's a struggle and i mostly grind it out to finish the 5 x 5. should i lower the weights down a bit? or keep it as it is. I am cutting right now.