I replaced the fill valve and flapper in toilet, but when I turned on the
Water, it does not fill up the tank quickly. There is water through the
Tube, but it jut "trickles" into the tank!

I replaced the fill valve and flapper in toilet, but when I turned on the
water, it does not fill up the tank quickly. There is water through the
tube, but it jut "trickles" into the tank!

Which type of ballcock did you install? (See Images) Tom

You have debris inside fill tube. Remove upper valve body, clean obstruction, reinstall upper valve body... and you are all set to go

You have debris inside fill tube. Remove upper valve body, clean obstruction, reinstall upper valve body.....and you are all set to go

But first tell us what you have so we can instruct you better. Tom