Archwing controls feel better overall when it's not your intention to go fast. However, when you do want to go fast, the new system is very limiting because of the 2 second archwing blink cooldown and a lack of movement mods for archwing. Previously, the only maximum speed was the speed at which the game took your inputs, now the max speed is 100m/2s for blink and about 100m/s for flight. This is around 150 m/s. Sure that sounds fast, except for when you've got a 1.5km2 map and need to move around quickly, for example eidolon hunts (which many players actually do, believe it or not. we miss our raids and this is our only content related to them.) or speedrunning bounties which makes for a fun challenge. It also hurts regular gameplay because not everyone has hours to fly around on a motorized butterfly. This results in the only viable option being a speed warframe, and if I recall, being forced to use one specific warframe/archwing/weapon is exactly why we no longer have fast blinking or coptering or overpowered warframes like AFK ember and 5 energy cost banshee ult.
I realise that reverting a huge change like this isn't DE's style, so I'm suggesting adding more mobility mods for archwing (Warframes have an entire collection of mobility mods while archwing has 1 mod for it), and maybe a mod to reduce the blink cooldown by around 40-50%. This would help players cope with the change and show that you care about archwing, and that it's not a dead gamemode from 2014.
TL;DR Archwing is cooler now, but way too slow, and we want our mobility back in the form of the change being reverted OR new mods to help make up for the power gap.