Likely not. Your processor uses a BGA socket, which means it is soldered to the motherboard, or to a daughter card. If motherboard, then NO, unless you replace the entire board with one that has a better processor. If daughter card, maybe Dell with have a better processor on a daughter card that they sell, which I doubt.
https://ark.intel.com/content/www/us/en/ark/products/91533/intel-celeron-processor-j3160-2m-cache-up...
Now, the rest of the story. The new CPU would have to be socket, chipset, and BIOS compatible. Only Dell can tell you what processors are compatible with their bios.
My suggestion is to replace the entire system.
