Localization slow FPS problem - Thai and Hindi, other languages are without problems

I have made for test Third Person blank project with one widget containing about 22 text blocks with ~100 words each. English language is native and for testing i have made 2 other translations of that text, one is czech and one is hindi. I have 1 composite font, main font is for english, 1 subfont is for czech, 1 subfont is for hindi. Problem is when I switch language ingame via SetCurrentCulture, than Hindi make extreme fps drops, czech and english is without problems. Internationalization support is All, languages are checked in packaging…