I have been facing the same issue. but now i almost solved this issue. in jan 2023 i was getting very low crm and ctr on serp. then after that i started doing off page and improved the position. the position in serp can help you to increase CTR. The Crm is always low for the indian lotteries
I would suggest checking out the HubSpot Blog here with a download to The Ultimate Guide to Google Ads. You will find some tips here on how to use Google Ads with your site.