Wtf is wrong with my rogue dps?

So I restarted my WoW account since taking a lot of time off since vanilla/ BC and back in the day I used to crush pvp/ pve with my rogue with little to no issues.

Now coming back to the game after a long hiatus (8.3 patch is what I’m playing) I have been gearing up my top toons (120 rogue/ 120 warlock). I use assassination for pvp and outlaw for pve on my rogue however, my destro lock (ilvl 458-460) tops dps around 60-80k… and on the other hand my rogue (ilvl 470) struggles to break 40-50k in m+ and raids. I’ve looked into corruptions and those check out/ my simulation has me roundabouts 60k but I’ve seen rogues average 70k at my ilvl. Obviously this could be my skill but considering my lock has no issues with DPS I’m seriously getting frustrated considering I want to think I’m at least a decent player! Please assist if y’all know any good tips/ tricks please!

Rogue: Crimepayz - Mal’Ganis
Warlock: Krimepayz - Mal’Ganis