Noticeable drops in video

Since I've moved to Re:Anime, the UI is slick, the video quality is superb. But lately I've been noticing some slight frame drops that i almost thought it was the anime itself but I tried another site and it performs smoothly without the slight drops. I did try to clear cache on my browser, disable adblock (because I wanna support this community),and also switched to another browser which didn't in fact help. The website is good but the slight frame drops throughout the video is kind of eh.