Hello,

You can try disabling the shop page title from Theme Settings >> Shop >> Sidebar & Page title.

Screenshot for Clarification: https://prnt.sc/vdtpbu

And to reduce space try adding the following Custom CSS in the Global Custom CSS area under Theme Settings >> Custom CSS.

.without-title.title-size-small {
	padding-top: 0;
	padding-bottom: 0;
}

Best Regards.