Tamilrockers initially releases "CamRips" (recorded on a phone inside a theater). These cannot be "fixed" because the source is garbage. You cannot fix the shadow of a head walking in front of the screen. You cannot fix the occasional laugh of a child in the audience. A true "fixed" file only appears after the official digital release (Disney+ Hotstar or Netflix), at which point you don't need a fix—you just need the legal version.
While watching a stream is often in a gray area, a movie from Tamilrockers using BitTorrent exposes your IP address. In Germany, France, and increasingly India, copyright holders can issue fines ranging from $500 to $5,000 per infringement.
If you are trying to find which specific streaming service currently has the Kung Fu Panda movies in your area, I can look that up for you!
You can rent or buy high-definition versions of the movies, often including regional language tracks. YouTube Movies Individual films and series like The Dragon Knight