Is cardio holding me back? (high compounds) Hi just for reference, 39 male, 6'5, 198 pounds (15-16% BF) Just started lifting again now that my kids are old enough let me sleep enough! lol I've never been really fit in my life, when I first lifted weight at 18yo, I was 6'5 155pounds, and could barely bench the empty bar. I'm not a sport guy at all and usually not very active. I'm trying to change this up since roughly last august, my lift are increasing slowly, it's going slow but I'm getting better for sure. Now when it comes to high compounds particularly deadlifts and squats.. not only am I extremly weak, but my cardio is definitly lacking. For exemple squats, couple months ago I could barely perform proper body weight sqauats, I have slowly progressed and for now I stick to goblet squats. These days I roughly go with a 50pound dumbell, and let's say I start my set with 100BPM heart (from my galaxy watch 5), after 5-6 reps I'm already struggling, but I don't feel like it's lactic acid holding me back... I'm just totally out of breath, I'll finish a 9-10 reps set and my HR is already 165-170 BPM.. like holy hell ? I know high compounds use a lot of muscle groups but damn! I've been adding more and more cardio the last month, eliptical, swimming, walking (much more than I've ever done in my life) and so far I see zero improvement. ​ Anyway just wanted to see if anyone could chime in on some tips?