针对这条SQL, TiDB 的查询速度较慢,是什么引起的?

CREATE TABLE psnaccount (

PERSONID varchar(40) NOT NULL DEFAULT ‘’ COMMENT ‘人员Id’
PRIMARY KEY (PERSONID) /*T![clustered_index] NONCLUSTERED */,
UNIQUE KEY EMPLOYEEID (EMPLOYEEID),
KEY ix_psnaccount_TPB (TRUENAME,PERSONID,BRANCHID),
KEY ix_psnaccount_PERSONID (PERSONID),
KEY ix_psnaccount_TRUENAME (TRUENAME),
KEY ix_psnaccount_BE (BRANCHID,EMPLOYEEID),
KEY ix_psnaccount_EA (EMPLOYEEID,ATTENDONDATE),
KEY idx_ATTENDONDATE (ATTENDONDATE),
KEY idx_DIMISSIONDATE (DIMISSIONDATE),
KEY idx_EmployeeTypeId (EMPLOYEETYPEID)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin