Hi Jimenaes,
I was not only speaking about wysiwyg field, but for all your form fields.
VARCHAR(255) take lot of space, and often it's not needed. So for example, if you have a field Select with options like "My Text 1=1 / My Text 2=2...", it's better to set the column as something like 'TINYINT(3)".
I think, if you adapt correctly all your field you will close this issue.
Regards.
Lionel