Super Slow Internet

Hello Neighbours!

I have been using Telus internt 25 for about three or four months and it has been good. But those last few days internet is very very slow. (I am ok as long as a page loaded in a min so I don't think I am complaining unfairly).

If you having the similar issue what do you do usually? I can disconnect internet and connect back again and it makes it bit faster but it is going back to really slow again. 

Should I contact with Telus customer service for the issue?