NVIDIA GT 610 Graphics Driver Problem,lags after turning on PC

Hi all, I'm new to graphics card, please have mercy. I have a hp pavilion P6000 series PC, it's 5 years old now. I had my graphics card replaced into a NVIDIA GT 610 graphics card 5 months ago. When I started using this graphics card it was okay for a week, no lags. It then started lagging for no reason and I don't know why. This lag occurs after a few seconds after desktop interface is shown on the screen. When it's lagging the mouse cursor doesn't run smoothly, it teleports when I'm moving my mouse, and when I put the mouse cursor over an icon the icon doesn't have that fade blue light shown immediately. So, I had to go to GeForce Experience app to reinstall my driver. After reinstalling the driver everything runs smoothly. No lags. Sometimes the screen just turns black and turns back on again and said that the driver stopped working and has recovered and everything runs smoothly ( this does not happen after I reinstall my driver, only happens if I had not reinstall my driver). Can someone help me with this problem? I'm really sick and tired of reinstalling my driver whenever I want to use my computer. Do drop questions if you don't understand what I'm talking about. Thanks :)

Sorry for my bad English.

Hi, sorry for the late reply guys, i was busy.

@andrew129260 - Hi, thanks for suggesting me to NVIDIA's auto driver tool. unfortunately it didn't work

@ThrashZone - Hi, i have updated my driver already and it is still lagging. i expected it to solve the lagging issue but unfortunately it didn't solve the issue.

Is there anymore i can do to solve this issue?

Oh.. So those are called ports.. I didn't know that. Sorry.

I used the Rectangular port for 4 years , I think it is dvi. And switched to the blue colored port VGA just recently. Btw mine was Msi video card