Slow and bugging computer

I own 4 different AVAST licenses:

  • AVAST PREMIUM SECURITY
  • AVAST CLEANUP
  • VPN AVAST SECURE LINE
  • AVAST PASSWORDS

Since I installed them on my computer, it became very slow, to open it takes at least 5 minutes, to open a WEB page takes the same time and to open my brownser can take also a few minutes and sometimes it never opens. My screen turns black quite often (which I solve by pressing fn + f6 but is this a desirable solutuion?),

I have read things about “aswbidsha” but before I do anything can somebody help with my problem?

(Windows 10 - 64 bits - HP Pavilion all in one - 4 gb RAM unfortunately)

Thank you for your help

Jacques