but tyres can improve things a little.
i would say more than a little, was running Michelin Pro3’s until i destroyed them, now running Conti Ultra Sports as they were cheap and what i could get.
They are crap, they don’t go round corners, hard to get to speed, you feel all the crap on the road.
Yes i have gone from an ok tyre to a crap tyre, but depending on the starting point, it can make a big difference.
What i would caution, how often do you want to change things, light tends to mean disposable. my current tyres are crap but they are also very durable, 3.5k miles and the back tyre is just starting to flat across the centre. other tyres i have destroyed in less than 2k miles