Oven takes a long time to ignite and heat up

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Brand: GE
Model Number: JGB660sej22
Main Symptom: oven takes a long time to heat or ignite
What happens & when:

Error Code (if any):
Parts or tests already tried:
Photos / video link:

Check the ignitor to ensure it is not weak causing the oven safety valve to not open.

https://www.appliancepartspros.com/repair-help/ranges-stove-oven-repair-help