Fuzzypyro

3 things.

1. Wash your build plate with soap and hot water. It helps more with adhesion than you think. Do not use glue stick or any adhesives on the plate. People report that it works but I always found significantly better results with just soap and hot water on pei with materials that adhere to pei well such as pla. Masking tape with adhesives might make a difference for materials that do not stick to pei.
2. If you are designing the part or have any time with cad then put a tiny bevel on the surface that touches the build plate. Doesn’t meet to be large. Just something. It helps with cooling shrinkage and retraction of pla on the first layers.
3. enclosure or still air will help but are not strictly needed for pla.

Last thing I would do is maybe adjust your z-offset. It looks like it might be experiencing some elephants foot at the bottom. I would try raising the head just by about .10. Really though that is going to be fully determined by your first layer of course.