Image Quality

Hi, I was hoping someone could help.

We use articulate 360 for our courses, we find that when we are using our logos (png files) they come up slightly blurry on the course even though the logo is a pretty large size (roughly around 3000px x 1000px)

Can anyone help? Are we able to add vector files in to stop this or? such as an EPS

Thanks, attached logo for ref 

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