If you don’t have a budget to upgrade to a better laptop anytime soon, I recommend using a low ram distro, like Lubuntu and search for the best driver compatible for your GT 730. I believe this GPU barely supports Vulkan so demanding 3D games will mostly not run properly. You’ll have to stick with old AAA or indie games. Also, if using a Ubuntu-based distro, make sure the package nvidia-prime is installed to use your nvidia GPU instead of the Intel HD Graphics which are even worse. Good luck!