Visitors decide in under three seconds whether your page is relevant to them. If your headline describes what you do instead of what they get, you have already lost half of them.
The second killer is a missing single next step. Five equally weighted buttons is the same as no button at all — pick one primary action per screen.
Third: no proof. Numbers, logos and specific testimonials outperform adjectives every time. 'Conversions up 41% in three weeks' beats 'high quality solutions'.
And fourth, speed. Every extra second of load time costs you measurable revenue. Ship images in modern formats, defer everything below the fold, and keep the critical path small.