how to disable hash check on download completion?

My torrent finished downloading and performed hash check, but is was a huge task which is almost 700 GBs and caused some problems to my computer. I would want to know how disable that.

When i come to check on advanced options, bittorent.hash_check_on_finished has already set to fasle.

My download wasn't moved upon completion, but i had LT seed enabled.

Do i need to disable LT seed or do anything so there won't be a hash check on download completion?

Does bittorent.hash_check_on_finished set to false mean to disable hash checking when finish downloading? If so, there might be a problem and it doesn’t work for me. Any one have an idea on this?

I'm using BitComet 1.51