BTG wallet drive fragmented

[Jexy]

I am putting the block-chain on a external drive and i was looking to save some space and speed it up by defraging it. When i opened up the windows built in dive optimisation thing and analysed it it said it was 70% fragmented. That is alot and i am not sure weather its picking up the block-chain and thinking its fragmented or it is actually that bad (I shouldn't be because i formatted the drive before i started this a few days ago). https://image.ibb.co/iVPYpm/disk.png