Roblox Suddenly Lagging

So I know there are similar questions on Google, but they had something to do with their Nvidia driver, which I don't have or any way to get it (I'm just a kid, I don't have enough knowledge to go through my PC stats and get an Nvidia driver or whatnot).

I did try the reducing lag methods (such as going into Roblox studio and turning off frame manager and changing the render distance to a lower resolution), but I still get stuttering frames, just barely-noticeable but gameplay-changing amounts of lag and just overall server lagging (pressing a key and the function of the key happening about a second later, people teleporting and such).

This isn't my PC problem - my 2 PCs had no problem running Roblox about 2 days ago, then one day I turned on my wireless PC and it just seems to have lag. I thought this may be just it being wireless and tried my wired one, but that had the exact same problem. I also tried disabling my antivirus on my big PC, which did seem to get rid of a tiny bit of lag but still lagging the same way nonetheless. Others seem to not have this problem, re-installing or restarting the PC doesn't work, and Roblox didn't update until today (which still lags). This is extremely frustrating, any help will be appreciated.

Solution 1:

You are talking about the Nvidia driver. Do u mean you just need to update it? If so, its extremely easy to update a graphics card driver. Assuming you are running windows, just go to Device Manager, open display adapters, and select your graphics card. Then, click the upgrade driver software button on the top of the window. (The one with the green arrow pointing upwards). That's it.