Slow loading and keyboard lag in MacBook Air (Retina, 13-inch, 2018)

Using Mac OS Monterey 12.4.

1. The Safari tabs are slow to load and move slowly sometimes freezing. Refresh sometimes helps, sometimes not
2. The keyboarding is quixotic, both in emails and in word documents. Sometimes there is a considerable lag between the typing and when the characters appear. The cursor moves around and suddenly I am inputting text far from the place I intended.

I have an EtreCheck report but do not know how to paste it without exceedint the 5000 character limit. Where is the "additional text feature"?