New Acer Laptop Suddenly Became Slow

Hi,

My laptop suddenly became slow over night not sure what caused it, that night i just played a few card games with friends.its been like this for about 3 days now and im not sure what to do i wiped my computer clean the other day kept only personal files not sure whats going on so what took me before 1 to 2 min max to boot up and start my computer now takes about 5-8 min. When i open a program it takes about 2 to 3 min to open and if im chrome watching a video on 1 tab then open another my video stops and everything becomes even more slow so and unresponsive for a minute. If i have 1 app open and i open another the other becomes unresponsive even if its task manager or something simple like notepad.

Os: Microsoft 10 Home
Computer Model: Aspire r5-571T
Processor Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz, 2712 Mhz, 2 Core(s), 4 Logical Processor(s)
Ram: 8gb
Graphics Card: Intel 620
Hdd: 290/930 gb used


Edit: I Also Get Flickering Screens and a black screen before the welcome screen when booting up the acer logo is there for a few seconds before actually booting up. Also im not sure if this helps using one game as an example but i play a game called darkest dungeon its a turn-based strategy game between each turn the computer becomes unresponsive for about a minute then returns to normal.