File naming and date chaning on Sandisk Connect Wireless Stick

I just started using a Sandisk Connect Wireless stick.

After transferring photos from my phone, when I access the files on the USB through the computer to copy, I see that the file names are really odd like “2018-08-08_08-38-54” and all the dates are all changed to today (created, modified and last opened).

Screen Shot 2018-09-17 at 2.43.15 PM.png

I find both these quite inconvenient as I would need my photos to actually have the original creation date. And these file names are really long and messy.

Is there any way to change this? 

I use an iphone and imac.

Grateful for any advice.