You can change the keyboard’s sensitivity, also known as the keyboard’s repeat rate through Keyboard properties.
1.Open Control Panel.
2.Go to Ease of Access Center.
3.Under Explore all settings, click on Make the keyboard easier to use.
4.Under See also, click on Keyboard settings to open Keyboard Properties.
5.In the Speed tab, under Character repeat, adjust the Repeat delay and Repeat rate to your preference. There is a text box available so you can test out the changes you’ve made.