When installing a game on to my wd black p10 the write speed drops to 0 momentarily, regularly

whenever i try to download a steam game the disc writes at 90-100 mb/s but drops to 0 mb/s for a second or two

im installing gta5 in this image,
wd “dashboard” :

edit: a little while later into the download this also keeps happening:

Hi @swisscheese1,

Please contact the WD Technical Support team for best assistance and troubleshooting:
https://support-en.wd.com/app/ask