What are the ways that we can decrease the scan time in amibroker?
I have 200 scripts in my watchlist, which is taking around 20 seconds per scan.Is there any way that i can decrease this time?
If you have not already done so, I suggest reviewing this page: https://www.amibroker.com/guide/x_performance.html
You need to provide DETAILS on your setup. Specifically what database you are using. Scan times typically depend 90% on data. Formula runs much faster than disk is able to deliver data. So proper database settings and cache settings help.
Do you use wait for backfill in all 200 scripts ? try doing it only for the first script.
Don't you mean symbols?