And Thief isn't supposed to be a DPS monster but a... thief. If Rogue needs such homebrew perhaps it should be Assassin.
Rogue doesn't need Dual wielding to be super powerful, Sneak attack will do that already. They also don't get a fighting style so they lose out on dual wielding benefits. I think the only class that can truly benefit, even at higher levels, is Ranger due to Hunter's Mark going off 3 times with Dual Wielding. A Warlock can also do this with Hexblade, Hex, Pact of the Blade, Thirsting Blade Invocation.