Let us help to narrow this issue down. I'm basing this off of the Acer Swift 3 SF315-52
Full hard drive? It has a 128gb SSD and 1tb HDD. Unlikely to be full after 1 month, but
it would help to know if the SSD is full as 128gb doesn't leave a ton of spare room.
Poor WiFi connectivity? This should be checked.
Underpowered laptop? The Swift 3 SF315 has an 8th gen 4c/8t I5, SSD, and 8gb of ddr4, so not an issue here.
Too much bloatware? Os reinstall could solve this. Neither of my newer Acer laptops has much bloatware, even my low-end netbook, other than the windows defaults and a little bit of OEM stuff, so I doubt this one does.
This isn't likely an issue but its possible.
Corrupt audio driver? Could be, although the drivers should be correct from the factory.
You could update your audio driver from device manager
Something else?
It's pretty hard to mess up a reinstall of windows if you are careful, so i would try that after doing the above in bold. If that doesn't solve it, id gets a replacement laptop. The laptop should have at least a 1 year warranty according to the warranty page of acers site.
https://www.acer.com/ac/en/GB/content/model/NX.GZ9EK.007