Know your clear speeds
I play Fill and one of my favorite roles to play is typically Jungle which I've played a lot of since I really started getting into league over 8 years ago. Basically something I see lately that pisses me off is people not knowing the basics of Jungle routes to take. I get the Red Side gives more but you're f#@king Lee Sin so why the hell are you trying to lvl 2 beaks because that's gonna take for f#@king ever. If you have someone who lacks AOE effects like Volibear,Lee Sin,Kha'zix or whoever don't try to clear a camp with a bunch of little s#!ts running around because it's gonna take way too damn long. Oh and if you are later gonna do that then try to get a Tiamat or a Bami's Cinder to help with it. I mean those two items aren't gonna hurt your champion since they tend to be the first things slow clear champions buy.
TL:DR Stop using slow clear champs to power farm red side at the start and get the right items to help if you are gonna farm it later.