Well upgrading the RAM to 8GB (4+4)  and installing SSD would be the ultimate solution for you.    But lets see how far can we push your computer with this hardware.  You did a RESET which puts factory image once again, so it's not very helpful. I would very much recommended reinstalling the operating system with a clean Microsoft Image. Dell or any other OEM loads a lot of Bloatware on the machine and since you only have 4GB RAM we want to keep as much RAM Free as we can. If you can backup your data and Download a clean copy of windows 10 using Microsoft Media creation tool on a USB that will certainly give your laptop a boost.   [URL]     Here's some more changes you can make  1. Reboot to BIOS (F2) > performance and ensure Intel Turbo Boost is enabled.   2 Click on battery Icon on bottom right side and move the slider to Max performance.  3. Open Task manager > startup and disable all startup application, you can reenable them from same place in case . 4. Open Settings > Privacy > background apps : Disable all  5. Open Settings > Privacy> Diagnostics and Feedback : Required  6. Open settings > System > Notification : Turn all of them off 7. Open Start > Run > Sysdm.cpl  : Advanced > Settings : Adjust for best performance  8: Ensure all windows updates are installed : Settings > Update and Security > Check for update.. Once updates are installed and reboot and check for updates. Until the machine says up to date.  9 Remove store apps which you don't use.     
[IMAGE]                                               Please help me my dell inspiron 15 3593 is very slow from the day i brought after 6 months my lap did not bring me to the lock screen so through os recovery options i reseted it. then it was fast and working fine and after 1 month is became very slow so someone help me. what should i do i cant even use ms teams properly pls help me thank you,
My Dell Inspiron 15 3593 is very slow!