Just adding a SDD as the main drive (240GB for under $30) should substantially speed things up. Clone OS.
A few months ago you could build this for under $500:
https://pcpartpicker.com/list/82zhy4
AMD Ryzen 5 3400G 3.7 GHz Quad-Core Processor / integrated graphics $144.99
ASRock B450 Pro4 ATX AM4 Motherboard $90.99
Team T-FORCE VULCAN Z 16 GB (2 x 8 GB) DDR4-3000 CL16 Memory $52.99
PNY XLR8 CS3030 500 GB M.2-2280 NVME Solid State Drive $64.98
ADATA SU635 240 GB 2.5" Solid State Drive $26.99
DIYPC Ranger-R8 ATX Mid Tower Case $46.99
CoolMax 500 W ATX Power Supply $23.53
Insignia NS-PCF8050 23.96 CFM 80 mm Fan $7.95
Reeven Coldwing 65.2 CFM 140 mm Fan $7.99
Base Total: $467.40
Promo Discounts: -$5.00
Shipping: $6.99
Total: $469.39
This is without the OS. Note the AMD Ryzen 5 3400G can by OC'd to over 4GHz, and comes with Wraith Spire Cooler. BIOS should be updated from AS Rock before installing that, and which should be done on the PNY XLR8 CS3030 500 GB M.2-2280 NVME Solid State Drive. Read manual first. Thank God for instruments to be used for good in service to Him.
My point was that it made no sense for a non-power user with an older PC to spend $100-$120 to upgrade tor Windows 10, when they could replace it on the cheap and also get Windows 10.