My computer is running slower and slow response in the a couple of months . What methods can I use to improve of overall performance without affecting the files, data on the disk?

6 kva ups connected in parallel when main power cut for more then battery backup time (3hrs ) or input voltage low /phase missing (<180V) then ups not provide output or min invertert voltage or one ups shutdown and it doesn't not work so pus parallel connection good or not

when earthing or nutral power cable connected in drinking 🚰 water and add some salt in water then density of 💡 bulb increased and more bright 🌻 of bulb.why this happened

I have seen I rain season when running cooler and changing laptop then get electrical shocked 😲 also ✅ by Tester then seen current ware come ..why this happened how to fixed it

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