Recently ive been running 3 times per week 2-3 miles. Its all trail running with some hills. Ive been running with an out of shape buddy and the dude comes out the gate running a good pace for the first 1.5 miles. I keep on him because hes fat and i dont want to get embarrassed but i always get exhausted and start breathing heavy as fuck. Right around the time he dies is when i start getting in the zone and picking it up even going faster than his pace. Sometimes it takes up to 2 miles before i ever feel i hit my groove or "get in the zone". Its like i have to blow my lungs out or something first. anyways im frustrated because i dont want to lie to myself like "hes just a fast starter" or "well he cant hold that pace". If i just need to man the fuck up through the hardest part of the run then so be it. Afterall if hes out of shape and i know he cant hold his pace then i shouls be able to match it and then still lean on my deeper cardio base. So is first mile or so of running all mental? Or do yall also need a bit of warmup before you hit your full speed?