Hallo after a long break I just recently started using Quantconnect again. Every algorithm I wrote worked fine when backtest over a period of about a year. However increasing this period to a few years lead to really slow backtests and increasing it even further lead to all backtest getting stuck at the first day. Since I am new to programming I suspected there was an issue with my code and I wrote a simple dummy algorithm to minimize this possiblility. In this algorithm only stock selection analogously to the TechnologyUniverseModule is performed (limited to 250 coarse and 25 fine). Unfortunately the slowdown also affected the dummy algorithm. 

Is this slowdown a know problem or am I missing something or is this working as intended?