I was bored so. [NEED HELP] [NOT MC RELATED]

[Despacito 2]

WARNING: EARRAPE + epileptic seizure. @ISeeThroughYou
Sup, yo, hi.
Me again, so I was trying my new RSMB(real smart motion blur), sadly it doesn't work that well.
So I've made a vid, added the RSMB and some other effects and it turned out pretty okay.
Only problem is it sometimes causes a black screen. 0:15 for rsmb footage.
I'm still trying to figure out how to remove the black-screen, add more motion blur and probably also lower my file size, since this video took me about 2 hours to upload. (6,25gb jesus christ)

Someone any tips on how improve the rsmb while making my file size smaller?
Also thanks for reading and watching, I guess.

Chalas.

 

[ISTY.]

Please add an epileptic seizure warning... haha
Anyway... the thumbnail had me dying, as always an edgy and funny video from you XD

 

[Chimpeeze]

Reduce the clip from 1.29 to 10 seconds. Should lower the size of the file.
No need to thank me, just glad I could offer my expertise.

 

[Despacito 2]

Reduce the clip from 1.29 to 10 seconds. Should lower the size of the file.
No need to thank me, just glad I could offer my expertise.

10 second clip = 3.28gb (I tried)
I tried rendering it through Sony and then through Movie Maker but my quality went from 100% to 0% and you couldn't really see the effect of it.
You can't even see it currently that well. The file size did shrink though. Something like 50 mb.
That's movie maker for yah.

I still have to figure out how to improve and keep the quality of the RSMB.