Can twitch have a shorter range when he attacks?

Twitch AA range is fine, you'd end up gutting him as an ADC by making it any shorter.

Now if you were to propose shortening his ultimate range I'd have to agree.

the problem with twitch is that nothing else scales well in the late game,his E becomes weaker than an autoattack in the lategame and his q only gives 50% attack speed.His R's range is his only lategame tool.

Attack range is a very different balance beast. Depending on attack range forces a lot of things into the kit to make it fair. For example, Kog, Ashe, Jinx, and Cait all have extreme range, they also have very little if any mobility. Lucian, Xayah, and Sivir however all have shirt range but with some sort of burst combo/safety spell. Lucian has his combo and dash, Xayah has feather root and R, and Sivir has spellshield and a combo too. If they lower twitches basic range, he will need either a stronger survival tool than just stealth, or his damage will have to go up. Do you want that trade off? I don't. I would rather he get a more "boring" nerf.

What Twitch needs is for the meta to stop favoring ADCs so much.

Twitch needs MASSIVE nerfs, idk about this but maybe giving him less raw AD from his ult.

Or how about his first out attack out of camouflage is greatly reduced (even with ult) That way he can't appear out of nowhere 800 units away dealing 600 damage a hit