Yeah it's cooled off a bit here. West Coast we have mild winters, even in December it's not unusual to see 60 degree for a daytime high with a Pineapple Express storm coming in from Hawaii. Mostly upper 40's lower 50's with a rare snow storm every 5 years or so.
I'm still thinking your shifter kitted gearing is the big issue: When you release your clutch in your video, the engine bogs and struggles because it's trying to run at an rpm that's just a couple hundred above idle. Later, this next year see if you can buy a larger primary drive jackshaft sprocket, the second sprocket on the left side of the engine. Going from a 10 tooth on the engine to a 15 on the jackshaft or bigger will speed your engine up. It will make starting your bike harder when shifted to first or second gears though.