[Problem] Dell Laptop extremely slow after BIOS Update

hello master i am facing new problem in dell laptop windows slow booting and keybaord working slow. if am open bios touchpad also not working. when i am connect external usb keybaord working well but internal keyboard slow.

Edit by Fernando: Thread title customized

@rajeshkumar :
For being able to help we need some information about your laptop model and the BIOS you have flashed. Has it been an original Dell BIOS or a modded?
If it was an original Dell BIOS, you should better contact the Dell Support. If you had flashed a modded BIOS, please post details about it (who modded it for which purpose) and attach it as compressed *.ZIP or *.RAR archive.

here is my original file which im facing problem

old.rar (8.36 MB)