when the time comes , loading time = Cpu + Ram i.e, an Intel 3 with 8G Ram will take at least 5 mins to unpack some areas where as a Ryzen + 12G will do it in a 3rd the time
your issue here with the ladders boils down to having zero Vram which means there is no buffer for working out pathes or rendors and thats why others are having zero issues in places where you get stuck... personally i'd look into a W10 laptop with at least a Gpu chip for better bang for $ as towers are great until you need to find a GPU card that isn't ex-minner or just over priced and a laptop runs just fine as long as you keep it cool
anyway good luck
