Putlocker technical requirements?

What are the technical requirements for Putlocker to work optimally? I experience poor quality/lag as opposed to some of my friends while watching the exact same movie. The video kinda looks like someone drew a cartoon movie in the pages of a book and as you quickly flip the pages it forms a little movie… Basically the movies look like a bunch of still pictures strung together. First off I have Chromecast which I'm starting to think is not compatible with Putlocker since when I disconnect the Chromecast and hardwire my com to the tv this problem is diminished greatly tho still somewhat noticeable. Several people suggested since I have the slowest internet speed which is 2megs. I should upgrade with my cable company to 15megs. Do I need to do this or is 2megs. Plenty? Someone else suggested I get a docsis 3.0 modem instead of the 2.0 I have but again unless I upgrade my internet speed first I believe there's no purpose in doing this since the 3.0 is for faster internet speeds. Also someone suggested that I get a duel band wireless router as opposed to the single band I have now. Their reasoning is that since my household has 3 Iphones, an Ipad, a laptop, and a Chromecast that perhaps my wireless router is overwhelmed. I'm pretty sure its not my laptop since its relatively new. Would hard wiring my wireless router help improve this at all? Thoughts? And input on technical requirements for Putlocker to work optimally?

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