Title is clickbait, but I will take this chance to say something that can literally make many if not most >1 year old computers much faster: Clean the dust off

Title is clickbait, but I will take this chance to say something that can literally make many if not most >1 year old computers much faster: Clean the dust off the heatsink(s) and fans. This is hardware 101, but almost no one actually does it and the result is that the processor or GPU starts thermally throttling, with zero warning or indication that it is operating in a handicapped mode beyond that it no longer has the speed it once did.