I'm only having issues on certain videos. Specifically the Quiz - Complex Conditional Translations 1-4. It actually doesn't only lag for few seconds. I couldn't watch pass 4 or 5 seconds of the video. All the other videos seem fine.

Update: I tried to use another browser (Microsoft Edge). It works fine, so I'm assuming it's only Chrome. I also cleared my cache. It doesn't solve the problem.

interested!

I'm interested