New laptop or work on this?

So I recently got rid of my 20+ year old XP laptop and inherited this thing instead. It's powerful enough to do remote desktop/screen share to a much more powerful machine, but it's slow with everything else. I'm wondering if it's worth the money to upgrade the parts or just buy a new build?

Just FYI, about the bravest I've been so far with PC modding is replacing ram/graphics card/power supply but never builds from scratch

    Operating System
        Windows 10 Home 64-bit
    CPU
        AMD A8-4500M
        Trinity 32nm Technology
    RAM
        6.00GB Dual-Channel DDR3 @ 806MHz (11-11-12-28)
    Motherboard
        SAMSUNG ELECTRONICS CO. LTD. NP355V5C-A0EUK (P0)
    Graphics
         (1366x768@60Hz)
        512MB ATI AMD Radeon HD 7640G (Samsung)
    Storage
        931GB ST1000LM024 HN-M SATA Disk Device (SATA )