Opinions on my labs PLEASE

52 y/o Female. 110lb 5'4". Exercise daily and eat clean.

Labs

Total 281

LDL 169

HDL 96

Trig 69

LP(a) 122 nmol

Can the LP(a) make it more difficult to lower your LDL? Should I get a calcium score and if so How much radiation do they emit? I appreciate any advice or thoughts.