Fix Fault Vauxhall Astra 97

What could be the cause of my astra barely reaching 60mph and being slower than a 97' VW polo 1.0? the engine is not misfiring and it has had a full service but its not helping.

My Astra has been playing up for the past couple of weeks - It started to overheat after 5 mins when the engine was freezing cold as had been left all night, steam was coming from the coolant, heat in ... more

R Reg Astra Arctic 1.6 8v - Blower switch only works on position 4 - any thoughts - Electronics or switch itself Thanks M

Vauxhall Astra 97 The headlights are dazzling other road users.The motor on the lights does not work which move them up and down. Would I need a fuse if so where would I find it. Thank you

how do i change a front side light on a astra 97