Twitch Needs Some Sort of Dash In the Current Meta

Hello, just a Twitch main here. A big problem for Twitch in the current meta is a lack of mobility, but it's okay: A lot of champions in the current meta, like Twitch, lack mobility and still thrive. That's not the biggest issue though. The biggest issue is champions like Tahm, Braum, and Yasuo coming more into meta. Yasuo and Braum have a wall that prevents anything from passing through, which completely renders Twitch ult useless and makes him an entirely useless throughout an entire team fight. It's unfair to the meta to have champions that completely block other champions from being played. Counters are okay, every champion has a counter, but being able to entirely block out a champion's existence is unfair. Countless times I've played Twitch against a Yasuo or Braum and done no damage throughout the entire fight just because I can't reposition fast enough after using my ult and they use their wall. Other ADCs like Vayne, Sivir, or Tristana have the mobility to move fast enough after the walls are used, and don't rely on being stationary during their ult, while Twitch is required to not move much after using his ult since its duration is so low and you can't make much movement while autoattacking.

Four possible fixes for this are: A) Increase the ult duration. B) Make his ult like Yi's ult (the duration increases for champion kill or assist). C) Make his Q give him a dash upon activation, then after 1.5 seconds (or 4.5 seconds of not taking damage) he goes into stealth. D) All of the above.

Please consider giving Twitch a minor tweak on his ult and Q. It's hard to play the game when one pick can completely screw me over the entire game.