# 809 Commit Time with Many Open Tables in a Database is Very Slow Even When Only One Table is Updated

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I've came up with a serious speed problem. I use 19 local tables to speed things up (and for other reasons too) and when I delete (read "delete from mytable") the tables, it takes 20-22 secs to delete them! (even if they are empty!). I've done some testing and found out that if I'm using the same tables with opened TDbIsamTables it's incredibly slow. If the TDbIsamTables are closed,
it goes down to 1-2 sec.