Paid Search Campaign - D2C

Hi,
We want to run a 2 months Google paid search campaign for our Ecommerce brand.
All details will be shared with the freelancers once they are hired.
Looking for a perfectionist and expert in PPC. To show your skills, could you please answer the below task and share with us.

You are given a Google Ads account to audit, and you are told that the account is
performing well, but needs some attention. The client sells sportswear online,
and can deliver to anywhere in the UK. When you look in the account, all you find
is:
One Search Campaign on Manual CPC
One Adgroup containing 50 Keywords (all the different products they sell)
One Responsive Search Ad
The client has spent £10,000 so far and this has generated £12,800 in sales from
250 Conversions. The client has a ROAS goal of £2.50 in order to make the
business sustainable.
a) What else would you look at and check in the account to complete a
thorough audit, and get a complete picture of account health?
b) What would you recommend implementing in the account, based on the
information above?
Quick applications will be entertained.
Thanks