Write Speed ?

I just installed an EVO 850 500GB SSD on my 2011 LG Xnote (12GB 1333 ram, i5 2435, GeForce GT 555M).

Im getting sequential speeds of 284 read and 267 write.

Im gettings random speeds of 45091 read and 41191 write.

Is this correct? if not, how might i improve it?

?2018-01-27T18:07:53Z

284 what?