Screen tearing

The game has a lot of scream tearing but no screen tearing.

Screen tearing is from the adaptive V-Sync from what I remember. It's been in the game since it released. Some people just don't notice it as it usually happens when all hell breaks loose.

No mate, not seen any screen tearing at all. Might be worth reinstalling it from the disk/download and see if it occours again.

if your laptop is not fast enough, the sink will not help you, you would need to contact Roblox support for help with their game

Enabling fixed V-Sync is not always ideal. For an example if you play a game synced to 60Hz and the frame rate drops below 60fps, the game is automatically re-synced to 30fps. If it drops again (below 30fps), it is re-synced to 15fps and if the same happens
again, frames are dropped (meaning it won't be send to the screen). So to provide somewhat stable rate of motion , developers disable V-Sync, which means the majority of frames rendered by the console are send to the screen. But that leads to two different
types of problems. 1. Unstable motion and 2, tearing. This is because it's not possible to fit number other than 30 and 15 into 60. So some developers program the game to drop frames while maintaining somewhat stable motion (or repeat the frame 2-3 times).
End result: Clean frames but the motion isn't consistent, which is ok for certain games but not for all games. The other option is to merge two frames into one, this leads to tearing (as you're clearly witnessing atm). This provide consistent motion at the
cost of visual quality. Certain developers isolate tearing near the top (HALO 3, ODST and Reach all programmed to tear at the top) but not developers have managed to achieve this. If you're playing it on the PC, you can modify the files or force the GPU to
enable V-Sync, but on console, there's no such option.