Is just a quick explanation with information that were in DLL/DaddyLongLegs video explaning the character kit that werent on the new deep dive format
first is his interaction with armor rating that like any character it decreases your damage, but since Solvarch doesn't have crits or any other format to compesate the armor penetration provide by the Crit his damage can get drastically reduced

images from the Deep Dive against Shuri and Infamous Iron Man, now a damage comparison against some mutants

you can already see way better numbers, 24K mediums and 15K lights,against neutral class i believe It would be around 19K mediums and 9-11K light attacks
also keep an eye on his core charges because they also affect your burst and energizes increase your attack rating
Also want to mention that Solvarch energize are 15% potency and at 10 he gains more 50% combat power rate, 200% combat power rate will help you to spam specials and control the match when your damage ins't in favor