>>63If you are running windows, make sure to go to the apps&features part of the settings and delete all apps you don’t use anymore to get rid of their background/startup services
Does it have a desktop or mobile cpu? If it’s socketed, you can replace it with something more powerful.
Check task manager. if it has an hdd, there is a good chance that it is absolutely suffering. You can splurge a little and get a decent 512gb ssd for under 60$ afaik.