SELECT 
  sd.param_id, 
  sd.param, 
  cscart_static_data_descriptions.descr, 
  sd.param_2, 
  sd.param_3, 
  sd.param_4, 
  sd.param_5, 
  sd.param_6, 
  sd.status, 
  sd.position, 
  sd.parent_id, 
  sd.id_path, 
  sd.class 
FROM 
  cscart_static_data AS sd 
  LEFT JOIN cscart_static_data_descriptions ON sd.param_id = cscart_static_data_descriptions.param_id 
  AND cscart_static_data_descriptions.lang_code = 'en' 
WHERE 
  sd.section = 'A' 
  AND sd.status = 'A' 
  AND sd.param_5 = '7' 
ORDER BY 
  sd.position

Query time 0.00046

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE sd ref section section 6 const,const 120 Using index condition; Using where; Using filesort
1 SIMPLE cscart_static_data_descriptions eq_ref PRIMARY PRIMARY 9 toolboxdigitalshop_dev.sd.param_id,const 1 Using where

Result

param_id param descr param_2 param_3 param_4 param_5 param_6 status position parent_id id_path class
152 index.php?dispatch=categories.view&category_id=6 Exclusive 7 A 10 0 152
153 /top-100.html Top 100 7 A 20 0 153
154 index.php?dispatch=categories.view&category_id=4 Hard House 7 A 30 0 154
155 index.php?dispatch=categories.view&category_id=1 Hard Dance 7 A 40 0 155
156 index.php?dispatch=categories.view&category_id=3 Hard Trance 7 A 50 0 156
157 index.php?dispatch=categories.view&category_id=22 Hardcore 7 A 60 0 157
158 index.php?dispatch=categories.view&category_id=25 Hardstyle 7 A 70 0 158
159 index.php?dispatch=categories.view&category_id=21 Classics 7 A 80 0 159
166 /my-toolbox.html MyTOOLBOX 7 A 90 0 166